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490739544 = 233217400931
BaseRepresentation
bin11101010000000…
…001011101011000
31021012102011002200
4131100001131120
52001112131134
6120410130200
715106134351
oct3520013530
91235364080
10490739544
11232011979
12118420960
137a892039
1449264d28
152d139499
hex1d401758

490739544 has 48 divisors (see below), whose sum is σ = 1407271320. Its totient is φ = 153957120.

The previous prime is 490739519. The next prime is 490739563. The reversal of 490739544 is 445937094.

It is a happy number.

490739544 is a `hidden beast` number, since 490 + 73 + 95 + 4 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 490739544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199242 + ... + 201689.

Almost surely, 2490739544 is an apocalyptic number.

It is an amenable number.

490739544 is an abundant number, since it is smaller than the sum of its proper divisors (916531776).

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

490739544 is a wasteful number, since it uses less digits than its factorization.

490739544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400960 (or 400953 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 490739544 is about 22152.6419191933. The cubic root of 490739544 is about 788.7699406838.

The spelling of 490739544 in words is "four hundred ninety million, seven hundred thirty-nine thousand, five hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 17 18 24 34 36 51 68 72 102 136 153 204 306 408 612 1224 400931 801862 1202793 1603724 2405586 3207448 3608379 4811172 6815827 7216758 9622344 13631654 14433516 20447481 27263308 28867032 40894962 54526616 61342443 81789924 122684886 163579848 245369772 490739544