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70440910693 = 238336899377
BaseRepresentation
bin100000110011010011…
…0101111111101100101
320201211011000000122021
41001212212233331211
52123230333120233
652205441103141
75042406601366
oct1014646577545
9221734000567
1070440910693
112796806a87a
121179a627ab1
1368478b115a
1435a33c9b6d
151c741a5e2d
hex10669aff65

70440910693 has 8 divisors (see below), whose sum is σ = 74389146048. Its totient is φ = 66566474304.

The previous prime is 70440910667. The next prime is 70440910703. The reversal of 70440910693 is 39601904407.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70440910693 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 (70440911693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18447780 + ... + 18451597.

It is an arithmetic number, because the mean of its divisors is an integer number (9298643256).

Almost surely, 270440910693 is an apocalyptic number.

It is an amenable number.

70440910693 is a deficient number, since it is larger than the sum of its proper divisors (3948235355).

70440910693 is a wasteful number, since it uses less digits than its factorization.

70440910693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36899483.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 70440910693 in words is "seventy billion, four hundred forty million, nine hundred ten thousand, six hundred ninety-three".

Divisors: 1 23 83 1909 36899377 848685671 3062648291 70440910693