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488991804 = 22375821331
BaseRepresentation
bin11101001001010…
…110110000111100
31021002010100122120
4131021112300330
52000140214204
6120304442540
715055235040
oct3511266074
91232110576
10488991804
11231028864
12117919450
137a3cc682
1448d2c020
152cde16d9
hex1d256c3c

488991804 has 24 divisors (see below), whose sum is σ = 1303978368. Its totient is φ = 139711920.

The previous prime is 488991773. The next prime is 488991821. The reversal of 488991804 is 408199884.

It is a super-2 number, since 2×4889918042 = 478225968758348832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2910582 + ... + 2910749.

It is an arithmetic number, because the mean of its divisors is an integer number (54332432).

Almost surely, 2488991804 is an apocalyptic number.

It is an amenable number.

488991804 is an abundant number, since it is smaller than the sum of its proper divisors (814986564).

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

488991804 is a wasteful number, since it uses less digits than its factorization.

488991804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5821345 (or 5821343 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 51.

The square root of 488991804 is about 22113.1590687536. The cubic root of 488991804 is about 787.8324409463.

The spelling of 488991804 in words is "four hundred eighty-eight million, nine hundred ninety-one thousand, eight hundred four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 5821331 11642662 17463993 23285324 34927986 40749317 69855972 81498634 122247951 162997268 244495902 488991804