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70112457 = 327790273
BaseRepresentation
bin1000010110111…
…01010011001001
311212221002012200
410023131103021
5120422044312
610542430413
71510642332
oct413352311
9155832180
1070112457
1136638588
121b592409
13116aaa7c
149451289
15624e0dc
hex42dd4c9

70112457 has 6 divisors (see below), whose sum is σ = 101273562. Its totient is φ = 46741632.

The previous prime is 70112453. The next prime is 70112477. The reversal of 70112457 is 75421107.

It can be written as a sum of positive squares in only one way, i.e., 57517056 + 12595401 = 7584^2 + 3549^2 .

It is not a de Polignac number, because 70112457 - 22 = 70112453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70112457.

It is not an unprimeable number, because it can be changed into a prime (70112453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3895128 + ... + 3895145.

It is an arithmetic number, because the mean of its divisors is an integer number (16878927).

Almost surely, 270112457 is an apocalyptic number.

It is an amenable number.

70112457 is a deficient number, since it is larger than the sum of its proper divisors (31161105).

70112457 is a wasteful number, since it uses less digits than its factorization.

70112457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7790279 (or 7790276 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 70112457 is about 8373.3181594873. The cubic root of 70112457 is about 412.3491106528.

The spelling of 70112457 in words is "seventy million, one hundred twelve thousand, four hundred fifty-seven".

Divisors: 1 3 9 7790273 23370819 70112457