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490998042 = 232415312553
BaseRepresentation
bin11101010001000…
…000100100011010
31021012220021200200
4131101000210122
52001143414132
6120415443030
715111262113
oct3521004432
91235807620
10490998042
11232179107
12118526476
137a9528b2
14492d120a
152d18ad7c
hex1d44091a

490998042 has 48 divisors (see below), whose sum is σ = 1110426408. Its totient is φ = 156648960.

The previous prime is 490998023. The next prime is 490998077. The reversal of 490998042 is 240899094.

It can be written as a sum of positive squares in 4 ways, for example, as 472671081 + 18326961 = 21741^2 + 4281^2 .

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, 32838 + ... + 45390.

Almost surely, 2490998042 is an apocalyptic number.

490998042 is an abundant number, since it is smaller than the sum of its proper divisors (619428366).

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

490998042 is a wasteful number, since it uses less digits than its factorization.

490998042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12655 (or 12652 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 490998042 is about 22158.4756244648. The cubic root of 490998042 is about 788.9084117352.

The spelling of 490998042 in words is "four hundred ninety million, nine hundred ninety-eight thousand, forty-two".

Divisors: 1 2 3 6 9 18 41 53 82 106 123 159 246 318 369 477 738 954 2173 4346 6519 12553 13038 19557 25106 37659 39114 75318 112977 225954 514673 665309 1029346 1330618 1544019 1995927 3088038 3991854 4632057 5987781 9264114 11975562 27277669 54555338 81833007 163666014 245499021 490998042