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64204692 = 2235350391
BaseRepresentation
bin1111010011101…
…0111110010100
311110210221021120
43310322332110
5112414022232
610212043540
71406505456
oct364727624
9143727246
1064204692
1133272a32
12196035b0
13103bca56
1487542d6
15598392c
hex3d3af94

64204692 has 12 divisors (see below), whose sum is σ = 149810976. Its totient is φ = 21401560.

The previous prime is 64204687. The next prime is 64204709. The reversal of 64204692 is 29640246.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2675184 + ... + 2675207.

It is an arithmetic number, because the mean of its divisors is an integer number (12484248).

Almost surely, 264204692 is an apocalyptic number.

It is an amenable number.

64204692 is an abundant number, since it is smaller than the sum of its proper divisors (85606284).

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

64204692 is a wasteful number, since it uses less digits than its factorization.

64204692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5350398 (or 5350396 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 64204692 is about 8012.7830371226. The cubic root of 64204692 is about 400.4259878415.

The spelling of 64204692 in words is "sixty-four million, two hundred four thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 12 5350391 10700782 16051173 21401564 32102346 64204692