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70385113 = 53225057
BaseRepresentation
bin1000011000111…
…11110111011001
311220102221020001
410030133313121
5121004310423
610552333001
71513156261
oct414376731
9156387201
1070385113
1136804417
121b6a4161
1311774bc6
1494c27a1
1562a4cad
hex431fdd9

70385113 has 6 divisors (see below), whose sum is σ = 71741054. Its totient is φ = 69054336.

The previous prime is 70385111. The next prime is 70385123. The reversal of 70385113 is 31158307.

It can be written as a sum of positive squares in 3 ways, for example, as 14837904 + 55547209 = 3852^2 + 7453^2 .

It is not a de Polignac number, because 70385113 - 21 = 70385111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70385111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9720 + ... + 15337.

Almost surely, 270385113 is an apocalyptic number.

It is an amenable number.

70385113 is a deficient number, since it is larger than the sum of its proper divisors (1355941).

70385113 is an equidigital number, since it uses as much as digits as its factorization.

70385113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25163 (or 25110 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 70385113 is about 8389.5836011092. The cubic root of 70385113 is about 412.8829389147.

The spelling of 70385113 in words is "seventy million, three hundred eighty-five thousand, one hundred thirteen".

Divisors: 1 53 2809 25057 1328021 70385113