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74536900 = 2252745369
BaseRepresentation
bin1000111000101…
…01011111000100
312012020212101221
410130111133010
5123040140100
611221330124
71563360514
oct434253704
9165225357
1074536900
113908a749
1220b66944
1312599899
149c83844
15682501a
hex47157c4

74536900 has 18 divisors (see below), whose sum is σ = 161745290. Its totient is φ = 29814720.

The previous prime is 74536841. The next prime is 74536901. The reversal of 74536900 is 963547.

It can be written as a sum of positive squares in 3 ways, for example, as 5447556 + 69089344 = 2334^2 + 8312^2 .

It is a super-2 number, since 2×745369002 = 11111498923220000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74536901) 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 5 ways as a sum of consecutive naturals, for example, 372585 + ... + 372784.

Almost surely, 274536900 is an apocalyptic number.

It is an amenable number.

74536900 is an abundant number, since it is smaller than the sum of its proper divisors (87208390).

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

74536900 is a wasteful number, since it uses less digits than its factorization.

74536900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745383 (or 745376 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 74536900 is about 8633.4755458043. The cubic root of 74536900 is about 420.8465540619.

The spelling of 74536900 in words is "seventy-four million, five hundred thirty-six thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 745369 1490738 2981476 3726845 7453690 14907380 18634225 37268450 74536900