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490168902 = 23193142307
BaseRepresentation
bin11101001101110…
…110001001000110
31021011100011022210
4131031312021012
52000440401102
6120350004250
715101236566
oct3515661106
91234304283
10490168902
11231762173
121181a6686
137a722392
1449156da6
152d07536c
hex1d376246

490168902 has 16 divisors (see below), whose sum is σ = 980868672. Its totient is φ = 163301160.

The previous prime is 490168901. The next prime is 490168919. The reversal of 490168902 is 209861094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490168901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9568 + ... + 32739.

It is an arithmetic number, because the mean of its divisors is an integer number (61304292).

Almost surely, 2490168902 is an apocalyptic number.

490168902 is an abundant number, since it is smaller than the sum of its proper divisors (490699770).

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

490168902 is a wasteful number, since it uses less digits than its factorization.

490168902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44243.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 490168902 is about 22139.7583997658. The cubic root of 490168902 is about 788.4640894852.

The spelling of 490168902 in words is "four hundred ninety million, one hundred sixty-eight thousand, nine hundred two".

Divisors: 1 2 3 6 1931 3862 5793 11586 42307 84614 126921 253842 81694817 163389634 245084451 490168902