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70112537 = 116373867
BaseRepresentation
bin1000010110111…
…01010100011001
311212221002022122
410023131110121
5120422100122
610542431025
71510642505
oct413352431
9155832278
1070112537
1136638650
121b592475
13116aab11
149451305
15624e142
hex42dd519

70112537 has 4 divisors (see below), whose sum is σ = 76486416. Its totient is φ = 63738660.

The previous prime is 70112491. The next prime is 70112551. The reversal of 70112537 is 73521107.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70112537 - 210 = 70111513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70112597) 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 3 ways as a sum of consecutive naturals, for example, 3186923 + ... + 3186944.

It is an arithmetic number, because the mean of its divisors is an integer number (19121604).

Almost surely, 270112537 is an apocalyptic number.

It is an amenable number.

70112537 is a deficient number, since it is larger than the sum of its proper divisors (6373879).

70112537 is a wasteful number, since it uses less digits than its factorization.

70112537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6373878.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 70112537 is about 8373.3229365647. The cubic root of 70112537 is about 412.3492674861.

The spelling of 70112537 in words is "seventy million, one hundred twelve thousand, five hundred thirty-seven".

Divisors: 1 11 6373867 70112537