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490930800 = 243523711057
BaseRepresentation
bin11101010000110…
…000001001110000
31021012202212110020
4131100300021300
52001134241200
6120414203440
715110562063
oct3520601160
91235685406
10490930800
11232132638
121184b3580
137a92b0c9
14492b48da
152d175ea0
hex1d430270

490930800 has 120 divisors (see below), whose sum is σ = 1615264176. Its totient is φ = 127365120.

The previous prime is 490930793. The next prime is 490930823. The reversal of 490930800 is 8039094.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38872 + ... + 49928.

Almost surely, 2490930800 is an apocalyptic number.

490930800 is a gapful number since it is divisible by the number (40) 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 490930800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (807632088).

490930800 is an abundant number, since it is smaller than the sum of its proper divisors (1124333376).

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

490930800 is a wasteful number, since it uses less digits than its factorization.

490930800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11115 (or 11104 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 490930800 is about 22156.9582749979. The cubic root of 490930800 is about 788.8723965194.

Adding to 490930800 its reverse (8039094), we get a palindrome (498969894).

The spelling of 490930800 in words is "four hundred ninety million, nine hundred thirty thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 37 40 48 50 60 74 75 80 100 111 120 148 150 185 200 222 240 296 300 370 400 444 555 592 600 740 888 925 1110 1200 1480 1776 1850 2220 2775 2960 3700 4440 5550 7400 8880 11057 11100 14800 22114 22200 33171 44228 44400 55285 66342 88456 110570 132684 165855 176912 221140 265368 276425 331710 409109 442280 530736 552850 663420 818218 829275 884560 1105700 1227327 1326840 1636436 1658550 2045545 2211400 2454654 2653680 3272872 3317100 4091090 4422800 4909308 6136635 6545744 6634200 8182180 9818616 10227725 12273270 13268400 16364360 19637232 20455450 24546540 30683175 32728720 40910900 49093080 61366350 81821800 98186160 122732700 163643600 245465400 490930800