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64864068 = 22329186391
BaseRepresentation
bin1111011101101…
…1111101000100
311112001102202220
43313123331010
5113101122233
610234132340
71415223033
oct367337504
9145042686
1064864068
1133683375
12198810b0
1310590c09
14888671a
155a63eb3
hex3ddbf44

64864068 has 24 divisors (see below), whose sum is σ = 156569280. Its totient is φ = 20875680.

The previous prime is 64864067. The next prime is 64864099. The reversal of 64864068 is 86046846.

It is not an unprimeable number, because it can be changed into a prime (64864067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92848 + ... + 93543.

It is an arithmetic number, because the mean of its divisors is an integer number (6523720).

Almost surely, 264864068 is an apocalyptic number.

It is an amenable number.

64864068 is an abundant number, since it is smaller than the sum of its proper divisors (91705212).

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

64864068 is a wasteful number, since it uses less digits than its factorization.

64864068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186427 (or 186425 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 64864068 is about 8053.8231915035. The cubic root of 64864068 is about 401.7921006144.

The spelling of 64864068 in words is "sixty-four million, eight hundred sixty-four thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 186391 372782 559173 745564 1118346 2236692 5405339 10810678 16216017 21621356 32432034 64864068