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70064864860 = 22519141183023
BaseRepresentation
bin100000101000000110…
…0001111111001011100
320200211221101220201211
41001100030033321130
52121443101133420
652104245114204
75030162345014
oct1012014177134
9220757356654
1070064864860
1127794875aa1
12116b46b8964
1367b7a08a23
14356949cc44
151c51174e5a
hex105030fe5c

70064864860 has 24 divisors (see below), whose sum is σ = 147144707136. Its totient is φ = 28024328640.

The previous prime is 70064864851. The next prime is 70064864941. The reversal of 70064864860 is 6846846007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291309 + ... + 474331.

It is an arithmetic number, because the mean of its divisors is an integer number (6131029464).

Almost surely, 270064864860 is an apocalyptic number.

It is an amenable number.

70064864860 is an abundant number, since it is smaller than the sum of its proper divisors (77079842276).

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

70064864860 is a wasteful number, since it uses less digits than its factorization.

70064864860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202173 (or 202171 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 70064864860 in words is "seventy billion, sixty-four million, eight hundred sixty-four thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 19141 38282 76564 95705 183023 191410 366046 382820 732092 915115 1830230 3660460 3503243243 7006486486 14012972972 17516216215 35032432430 70064864860