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245663804 = 22173612703
BaseRepresentation
bin11101010010010…
…00100000111100
3122010021000101102
432221020200330
51000342220204
640213232232
76042052001
oct1651104074
9563230342
10245663804
11116741941
126a332678
133bb84ac9
14248ab8a8
151687941e
hexea4883c

245663804 has 12 divisors (see below), whose sum is σ = 455200704. Its totient is φ = 115606464.

The previous prime is 245663779. The next prime is 245663807. The reversal of 245663804 is 408366542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245663807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1806284 + ... + 1806419.

It is an arithmetic number, because the mean of its divisors is an integer number (37933392).

Almost surely, 2245663804 is an apocalyptic number.

It is an amenable number.

245663804 is a deficient number, since it is larger than the sum of its proper divisors (209536900).

245663804 is a wasteful number, since it uses less digits than its factorization.

245663804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612724 (or 3612722 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 245663804 is about 15673.6659400410. The cubic root of 245663804 is about 626.2970856612.

The spelling of 245663804 in words is "two hundred forty-five million, six hundred sixty-three thousand, eight hundred four".

Divisors: 1 2 4 17 34 68 3612703 7225406 14450812 61415951 122831902 245663804