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2253031680 = 2835837069
BaseRepresentation
bin1000011001001010…
…1000100100000000
312211000110212102210
42012102220210000
514103234003210
61011322142120
7106555311324
oct20622504400
95730425383
102253031680
11a56861059
1252a651940
1329ba0b953
14175323984
15d2be4e20
hex864a8900

2253031680 has 144 divisors (see below), whose sum is σ = 7283344320. Its totient is φ = 593485824.

The previous prime is 2253031667. The next prime is 2253031681. The reversal of 2253031680 is 861303522.

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

It is not an unprimeable number, because it can be changed into a prime (2253031681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315186 + ... + 322254.

It is an arithmetic number, because the mean of its divisors is an integer number (50578780).

Almost surely, 22253031680 is an apocalyptic number.

2253031680 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 2253031680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3641672160).

2253031680 is an abundant number, since it is smaller than the sum of its proper divisors (5030312640).

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

2253031680 is an equidigital number, since it uses as much as digits as its factorization.

2253031680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7176 (or 7162 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 2253031680 is about 47466.1108581691. The cubic root of 2253031680 is about 1310.9589699509.

The spelling of 2253031680 in words is "two billion, two hundred fifty-three million, thirty-one thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 83 96 120 128 160 166 192 240 249 256 320 332 384 415 480 498 640 664 768 830 960 996 1245 1280 1328 1660 1920 1992 2490 2656 3320 3840 3984 4980 5312 6640 7069 7968 9960 10624 13280 14138 15936 19920 21207 21248 26560 28276 31872 35345 39840 42414 53120 56552 63744 70690 79680 84828 106035 106240 113104 141380 159360 169656 212070 226208 282760 318720 339312 424140 452416 565520 586727 678624 848280 904832 1131040 1173454 1357248 1696560 1760181 1809664 2262080 2346908 2714496 2933635 3393120 3520362 4524160 4693816 5428992 5867270 6786240 7040724 8800905 9048320 9387632 11734540 13572480 14081448 17601810 18775264 23469080 27144960 28162896 35203620 37550528 46938160 56325792 70407240 75101056 93876320 112651584 140814480 150202112 187752640 225303168 281628960 375505280 450606336 563257920 751010560 1126515840 2253031680