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490286976 = 2738315383
BaseRepresentation
bin11101001110010…
…010111110000000
31021011120011021220
4131032102332000
52001003140401
6120352315040
715102241044
oct3516227600
91234504256
10490286976
11231832953
12118242a80
137a76404a
1449188024
152d09a336
hex1d392f80

490286976 has 64 divisors (see below), whose sum is σ = 1318101120. Its totient is φ = 161449472.

The previous prime is 490286957. The next prime is 490286981. The reversal of 490286976 is 679682094.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

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, 24181 + ... + 39563.

It is an arithmetic number, because the mean of its divisors is an integer number (20595330).

Almost surely, 2490286976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 490286976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (659050560).

490286976 is an abundant number, since it is smaller than the sum of its proper divisors (827814144).

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

490286976 is a wasteful number, since it uses less digits than its factorization.

490286976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15483 (or 15471 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 490286976 is about 22142.4247994658. The cubic root of 490286976 is about 788.5273939464.

The spelling of 490286976 in words is "four hundred ninety million, two hundred eighty-six thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 83 96 128 166 192 249 332 384 498 664 996 1328 1992 2656 3984 5312 7968 10624 15383 15936 30766 31872 46149 61532 92298 123064 184596 246128 369192 492256 738384 984512 1276789 1476768 1969024 2553578 2953536 3830367 5107156 5907072 7660734 10214312 15321468 20428624 30642936 40857248 61285872 81714496 122571744 163428992 245143488 490286976