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74670804 = 223213159553
BaseRepresentation
bin1000111001101…
…10001011010100
312012111200002100
410130312023110
5123103431204
611224242100
71564456065
oct434661324
9165450070
1074670804
113917130a
1221010330
1312615810
149cba56c
15684ea39
hex47362d4

74670804 has 36 divisors (see below), whose sum is σ = 203271796. Its totient is φ = 22975488.

The previous prime is 74670803. The next prime is 74670823. The reversal of 74670804 is 40807647.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27060804 + 47610000 = 5202^2 + 6900^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74670803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79309 + ... + 80244.

Almost surely, 274670804 is an apocalyptic number.

It is an amenable number.

74670804 is an abundant number, since it is smaller than the sum of its proper divisors (128600992).

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

74670804 is a wasteful number, since it uses less digits than its factorization.

74670804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159576 (or 159571 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 74670804 is about 8641.2269962084. The cubic root of 74670804 is about 421.0984173445.

The spelling of 74670804 in words is "seventy-four million, six hundred seventy thousand, eight hundred four".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 159553 319106 478659 638212 957318 1435977 1914636 2074189 2871954 4148378 5743908 6222567 8296756 12445134 18667701 24890268 37335402 74670804