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230505520800 = 25352199482633
BaseRepresentation
bin1101011010101100110…
…0110001111010100000
3211000222022210201001010
43112223030301322200
512234033403131200
6253520501140520
722440066412302
oct3265314617240
9730868721033
10230505520800
11898363a2515
123880b9ba740
13189763501b9
14b22971b972
155ee1657150
hex35ab331ea0

230505520800 has 144 divisors (see below), whose sum is σ = 754067361600. Its totient is φ = 61159127040.

The previous prime is 230505520789. The next prime is 230505520829. The reversal of 230505520800 is 8025505032.

230505520800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 236284 + ... + 718916.

It is an arithmetic number, because the mean of its divisors is an integer number (5236578900).

Almost surely, 2230505520800 is an apocalyptic number.

230505520800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230505520800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377033680800).

230505520800 is an abundant number, since it is smaller than the sum of its proper divisors (523561840800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230505520800 is a wasteful number, since it uses less digits than its factorization.

230505520800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482855 (or 482842 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 230505520800 in words is "two hundred thirty billion, five hundred five million, five hundred twenty thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 75 80 96 100 120 150 160 199 200 240 300 398 400 480 597 600 796 800 995 1194 1200 1592 1990 2388 2400 2985 3184 3980 4776 4975 5970 6368 7960 9552 9950 11940 14925 15920 19104 19900 23880 29850 31840 39800 47760 59700 79600 95520 119400 159200 238800 477600 482633 965266 1447899 1930532 2413165 2895798 3861064 4826330 5791596 7239495 7722128 9652660 11583192 12065825 14478990 15444256 19305320 23166384 24131650 28957980 36197475 38610640 46332768 48263300 57915960 72394950 77221280 96043967 96526600 115831920 144789900 192087934 193053200 231663840 288131901 289579800 384175868 386106400 480219835 576263802 579159600 768351736 960439670 1152527604 1158319200 1440659505 1536703472 1920879340 2305055208 2401099175 2881319010 3073406944 3841758680 4610110416 4802198350 5762638020 7203297525 7683517360 9220220832 9604396700 11525276040 14406595050 15367034720 19208793400 23050552080 28813190100 38417586800 46101104160 57626380200 76835173600 115252760400 230505520800