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108957691669 = 1949111679461
BaseRepresentation
bin110010101111001100…
…0100110111100010101
3101102020110010020010211
41211132120212330111
53241121132113134
6122015433245421
710605034045441
oct1453630467425
9342213106124
10108957691669
114223285a472
1219149863871
13a375598608
1453b89c1821
152c7a85a764
hex195e626f15

108957691669 has 8 divisors (see below), whose sum is σ = 114925906080. Its totient is φ = 103012837200.

The previous prime is 108957691573. The next prime is 108957691681. The reversal of 108957691669 is 966196759801.

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

It is a cyclic number.

It is not a de Polignac number, because 108957691669 - 235 = 74597953301 is a prime.

It is a super-2 number, since 2×1089576916692 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108957691699) 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, 5830402 + ... + 5849059.

It is an arithmetic number, because the mean of its divisors is an integer number (14365738260).

Almost surely, 2108957691669 is an apocalyptic number.

108957691669 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

108957691669 is a deficient number, since it is larger than the sum of its proper divisors (5968214411).

108957691669 is a wasteful number, since it uses less digits than its factorization.

108957691669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11679971.

The product of its (nonzero) digits is 44089920, while the sum is 67.

The spelling of 108957691669 in words is "one hundred eight billion, nine hundred fifty-seven million, six hundred ninety-one thousand, six hundred sixty-nine".

Divisors: 1 19 491 9329 11679461 221909759 5734615351 108957691669