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70116385 = 514023277
BaseRepresentation
bin1000010110111…
…10010000100001
311212221021121011
410023132100201
5120422211020
610542500521
71510656643
oct413362041
9155837534
1070116385
1136640529
121b594741
13116ac7b1
149452893
15625035a
hex42de421

70116385 has 4 divisors (see below), whose sum is σ = 84139668. Its totient is φ = 56093104.

The previous prime is 70116379. The next prime is 70116401. The reversal of 70116385 is 58361107.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16548624 + 53567761 = 4068^2 + 7319^2 .

It is a cyclic number.

It is not a de Polignac number, because 70116385 - 211 = 70114337 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7011634 + ... + 7011643.

It is an arithmetic number, because the mean of its divisors is an integer number (21034917).

Almost surely, 270116385 is an apocalyptic number.

It is an amenable number.

70116385 is a deficient number, since it is larger than the sum of its proper divisors (14023283).

70116385 is a wasteful number, since it uses less digits than its factorization.

70116385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14023282.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 70116385 is about 8373.5527107674. The cubic root of 70116385 is about 412.3568110298.

The spelling of 70116385 in words is "seventy million, one hundred sixteen thousand, three hundred eighty-five".

Divisors: 1 5 14023277 70116385