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70112647 = 116373877
BaseRepresentation
bin1000010110111…
…01010110000111
311212221002110201
410023131112013
5120422101042
610542431331
71510643023
oct413352607
9155832421
1070112647
1136638740
121b592547
13116aab97
149451383
15624e1b7
hex42dd587

70112647 has 4 divisors (see below), whose sum is σ = 76486536. Its totient is φ = 63738760.

The previous prime is 70112621. The next prime is 70112663. The reversal of 70112647 is 74621107.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70112647 - 215 = 70079879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70112617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3186928 + ... + 3186949.

It is an arithmetic number, because the mean of its divisors is an integer number (19121634).

Almost surely, 270112647 is an apocalyptic number.

70112647 is a deficient number, since it is larger than the sum of its proper divisors (6373889).

70112647 is a wasteful number, since it uses less digits than its factorization.

70112647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6373888.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 70112647 is about 8373.3295050416. The cubic root of 70112647 is about 412.3494831318.

The spelling of 70112647 in words is "seventy million, one hundred twelve thousand, six hundred forty-seven".

Divisors: 1 11 6373877 70112647