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64026896 = 2417298117
BaseRepresentation
bin1111010000111…
…1100100010000
311110110220101112
43310033210100
5112342330041
610204152452
71405135223
oct364174420
9143426345
1064026896
113316139a
1219538728
1310359b4b
1487095ba
15594adeb
hex3d0f910

64026896 has 40 divisors (see below), whose sum is σ = 135895320. Its totient is φ = 29087744.

The previous prime is 64026883. The next prime is 64026899. The reversal of 64026896 is 69862046.

It can be written as a sum of positive squares in 4 ways, for example, as 32262400 + 31764496 = 5680^2 + 5636^2 .

It is a super-2 number, since 2×640268962 = 8198886822789632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64026899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3830 + ... + 11946.

It is an arithmetic number, because the mean of its divisors is an integer number (3397383).

Almost surely, 264026896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64026896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67947660).

64026896 is an abundant number, since it is smaller than the sum of its proper divisors (71868424).

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

64026896 is a wasteful number, since it uses less digits than its factorization.

64026896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8171 (or 8165 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 64026896 is about 8001.6808234270. The cubic root of 64026896 is about 400.0560254858.

The spelling of 64026896 in words is "sixty-four million, twenty-six thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 16 17 29 34 58 68 116 136 232 272 464 493 986 1972 3944 7888 8117 16234 32468 64936 129872 137989 235393 275978 470786 551956 941572 1103912 1883144 2207824 3766288 4001681 8003362 16006724 32013448 64026896