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64135070 = 2519418233
BaseRepresentation
bin1111010010100…
…1111110011110
311110200101202222
43310221332132
5112404310240
610210345342
71406065466
oct364517636
9143611688
1064135070
113322569a
121958b252
131039715c
148736ba6
15596ceb5
hex3d29f9e

64135070 has 32 divisors (see below), whose sum is σ = 124498080. Its totient is φ = 23708160.

The previous prime is 64135061. The next prime is 64135087. The reversal of 64135070 is 7053146.

It is a super-2 number, since 2×641350702 = 8226614407809800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3674 + ... + 11906.

It is an arithmetic number, because the mean of its divisors is an integer number (3890565).

Almost surely, 264135070 is an apocalyptic number.

64135070 is a deficient number, since it is larger than the sum of its proper divisors (60363010).

64135070 is a wasteful number, since it uses less digits than its factorization.

64135070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8300.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 64135070 is about 8008.4374256156. The cubic root of 64135070 is about 400.2811981061.

The spelling of 64135070 in words is "sixty-four million, one hundred thirty-five thousand, seventy".

Divisors: 1 2 5 10 19 38 41 82 95 190 205 410 779 1558 3895 7790 8233 16466 41165 82330 156427 312854 337553 675106 782135 1564270 1687765 3375530 6413507 12827014 32067535 64135070