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108931069293 = 385342567827
BaseRepresentation
bin110010101110011001…
…1000011010101101101
3101102011121000200002220
41211130303003111231
53241042323204133
6122013042505553
710604261545254
oct1453463032555
9342147020086
10108931069293
1142219826702
12191409652b9
13a36cc06b27
1453b525179b
152c7834c5b3
hex195ccc356d

108931069293 has 8 divisors (see below), whose sum is σ = 145411700448. Its totient is φ = 72535575504.

The previous prime is 108931069279. The next prime is 108931069307. The reversal of 108931069293 is 392960139801.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (108931069279) and next prime (108931069307).

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

It is not a de Polignac number, because 108931069293 - 24 = 108931069277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108931069193) 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, 21281355 + ... + 21286472.

It is an arithmetic number, because the mean of its divisors is an integer number (18176462556).

Almost surely, 2108931069293 is an apocalyptic number.

It is an amenable number.

108931069293 is a deficient number, since it is larger than the sum of its proper divisors (36480631155).

108931069293 is an equidigital number, since it uses as much as digits as its factorization.

108931069293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42568683.

The product of its (nonzero) digits is 629856, while the sum is 51.

The spelling of 108931069293 in words is "one hundred eight billion, nine hundred thirty-one million, sixty-nine thousand, two hundred ninety-three".

Divisors: 1 3 853 2559 42567827 127703481 36310356431 108931069293