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70012079 = 611147739
BaseRepresentation
bin1000010110001…
…00110010101111
311212201222111222
410023010302233
5120410341304
610540333555
71510043564
oct413046257
9155658458
1070012079
113657a125
121b5442bb
1311674187
14942686b
15622e4be
hex42c4caf

70012079 has 4 divisors (see below), whose sum is σ = 71159880. Its totient is φ = 68864280.

The previous prime is 70012049. The next prime is 70012123. The reversal of 70012079 is 97021007.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70012079 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 (70012039) 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, 573809 + ... + 573930.

It is an arithmetic number, because the mean of its divisors is an integer number (17789970).

Almost surely, 270012079 is an apocalyptic number.

70012079 is a deficient number, since it is larger than the sum of its proper divisors (1147801).

70012079 is a wasteful number, since it uses less digits than its factorization.

70012079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147800.

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 70012079 is about 8367.3220925216. The cubic root of 70012079 is about 412.1522338580.

The spelling of 70012079 in words is "seventy million, twelve thousand, seventy-nine".

Divisors: 1 61 1147739 70012079