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69379070305 = 513875814061
BaseRepresentation
bin100000010011101010…
…0001001100101100001
320122002010221221110111
41000213110021211201
52114042020222210
651512230131321
75004164236666
oct1004724114541
9218063857414
1069379070305
1127472749436
1211542ab0b41
13670890142c
143502381a6d
151c10d5b88a
hex1027509961

69379070305 has 4 divisors (see below), whose sum is σ = 83254884372. Its totient is φ = 55503256240.

The previous prime is 69379070297. The next prime is 69379070347. The reversal of 69379070305 is 50307097396.

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 38532119616 + 30846950689 = 196296^2 + 175633^2 .

It is not a de Polignac number, because 69379070305 - 23 = 69379070297 is a prime.

It is a super-2 number, since 2×693790703052 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6937907026 + ... + 6937907035.

It is an arithmetic number, because the mean of its divisors is an integer number (20813721093).

Almost surely, 269379070305 is an apocalyptic number.

It is an amenable number.

69379070305 is a deficient number, since it is larger than the sum of its proper divisors (13875814067).

69379070305 is a wasteful number, since it uses less digits than its factorization.

69379070305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13875814066.

The product of its (nonzero) digits is 1071630, while the sum is 49.

The spelling of 69379070305 in words is "sixty-nine billion, three hundred seventy-nine million, seventy thousand, three hundred five".

Divisors: 1 5 13875814061 69379070305