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69929097269 = 363719227137
BaseRepresentation
bin100000100100000011…
…0010101100000110101
320200111110221012121112
41001020012111200311
52121203322103034
652042555124405
75023623343103
oct1011006254065
9220443835545
1069929097269
1127725174879
1211677143705
136795850c85
14355543ac73
151c442a77ce
hex1048195835

69929097269 has 4 divisors (see below), whose sum is σ = 69948328044. Its totient is φ = 69909866496.

The previous prime is 69929097263. The next prime is 69929097281. The reversal of 69929097269 is 96279092996.

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 32015944900 + 37913152369 = 178930^2 + 194713^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-69929097269 is a prime.

It is a super-2 number, since 2×699290972692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69929097199 and 69929097208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69929097263) 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, 9609932 + ... + 9617205.

It is an arithmetic number, because the mean of its divisors is an integer number (17487082011).

Almost surely, 269929097269 is an apocalyptic number.

It is an amenable number.

69929097269 is a deficient number, since it is larger than the sum of its proper divisors (19230775).

69929097269 is a wasteful number, since it uses less digits than its factorization.

69929097269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19230774.

The product of its (nonzero) digits is 59521392, while the sum is 68.

The spelling of 69929097269 in words is "sixty-nine billion, nine hundred twenty-nine million, ninety-seven thousand, two hundred sixty-nine".

Divisors: 1 3637 19227137 69929097269