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64035897 = 385724907
BaseRepresentation
bin1111010001000…
…1110000111001
311110111100201220
43310101300321
5112343122042
610204302253
71405203402
oct364216071
9143440656
1064035897
1133168132
1219541989
1310360c83
14870c9a9
15594d8ec
hex3d11c39

64035897 has 8 divisors (see below), whose sum is σ = 85484256. Its totient is φ = 42639072.

The previous prime is 64035883. The next prime is 64035913. The reversal of 64035897 is 79853046.

It is a happy number.

64035897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64035897 - 220 = 62987321 is a prime.

It is a super-2 number, since 2×640358972 = 8201192209189218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64035847) 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 7 ways as a sum of consecutive naturals, for example, 9883 + ... + 15024.

It is an arithmetic number, because the mean of its divisors is an integer number (10685532).

Almost surely, 264035897 is an apocalyptic number.

It is an amenable number.

64035897 is a deficient number, since it is larger than the sum of its proper divisors (21448359).

64035897 is a wasteful number, since it uses less digits than its factorization.

64035897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25767.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 64035897 is about 8002.2432479899. The cubic root of 64035897 is about 400.0747714389.

The spelling of 64035897 in words is "sixty-four million, thirty-five thousand, eight hundred ninety-seven".

Divisors: 1 3 857 2571 24907 74721 21345299 64035897