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64368429 = 3292772671
BaseRepresentation
bin1111010110001…
…0111100101101
311111010020212220
43311202330231
5112434242204
610215345553
71411060026
oct365427455
9144106786
1064368429
1133374a54
12196822b9
1310449438
148797c4d
1559b71d9
hex3d62f2d

64368429 has 16 divisors (see below), whose sum is σ = 89137920. Its totient is φ = 41267520.

The previous prime is 64368397. The next prime is 64368433. The reversal of 64368429 is 92486346.

It is a happy number.

It is not a de Polignac number, because 64368429 - 25 = 64368397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64368439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22764 + ... + 25434.

It is an arithmetic number, because the mean of its divisors is an integer number (5571120).

Almost surely, 264368429 is an apocalyptic number.

It is an amenable number.

64368429 is a deficient number, since it is larger than the sum of its proper divisors (24769491).

64368429 is a wasteful number, since it uses less digits than its factorization.

64368429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980.

The product of its digits is 248832, while the sum is 42.

The square root of 64368429 is about 8022.9937679148. The cubic root of 64368429 is about 400.7660922367.

The spelling of 64368429 in words is "sixty-four million, three hundred sixty-eight thousand, four hundred twenty-nine".

Divisors: 1 3 29 87 277 831 2671 8013 8033 24099 77459 232377 739867 2219601 21456143 64368429