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103191308945 = 5163126615103
BaseRepresentation
bin110000000011010101…
…1100110101010010001
3100212100120122122010022
41200012223212222101
53142313433341240
6115223323513225
710312114440134
oct1400653465221
9325316578108
10103191308945
113a84389280a
1217bba688815
139966a2742a
144dccc2621b
152a3e4bc9b5
hex1806ae6a91

103191308945 has 8 divisors (see below), whose sum is σ = 124589262336. Its totient is φ = 82046586096.

The previous prime is 103191308923. The next prime is 103191308951. The reversal of 103191308945 is 549803191301.

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 103191308945 - 212 = 103191304849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103191308896 and 103191308905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63306737 + ... + 63308366.

It is an arithmetic number, because the mean of its divisors is an integer number (15573657792).

Almost surely, 2103191308945 is an apocalyptic number.

It is an amenable number.

103191308945 is a deficient number, since it is larger than the sum of its proper divisors (21397953391).

103191308945 is a wasteful number, since it uses less digits than its factorization.

103191308945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126615271.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 103191308945 in words is "one hundred three billion, one hundred ninety-one million, three hundred eight thousand, nine hundred forty-five".

Divisors: 1 5 163 815 126615103 633075515 20638261789 103191308945