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103191379185 = 3545715053447
BaseRepresentation
bin110000000011010101…
…1110111110011110001
3100212100120210012110210
41200012223313303301
53142313443113220
6115223325214333
710312115151666
oct1400653676361
9325316705423
10103191379185
113a843930564
1217bba7013a9
139966a503ab
144dccc43a6d
152a3e4d36e0
hex1806af7cf1

103191379185 has 16 divisors (see below), whose sum is σ = 165467500416. Its totient is φ = 54914971008.

The previous prime is 103191379153. The next prime is 103191379217. The reversal of 103191379185 is 581973191301.

It is an interprime number because it is at equal distance from previous prime (103191379153) and next prime (103191379217).

It is not a de Polignac number, because 103191379185 - 25 = 103191379153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7519869 + ... + 7533578.

It is an arithmetic number, because the mean of its divisors is an integer number (10341718776).

Almost surely, 2103191379185 is an apocalyptic number.

103191379185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103191379185 is a deficient number, since it is larger than the sum of its proper divisors (62276121231).

103191379185 is a wasteful number, since it uses less digits than its factorization.

103191379185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15053912.

The product of its (nonzero) digits is 204120, while the sum is 48.

The spelling of 103191379185 in words is "one hundred three billion, one hundred ninety-one million, three hundred seventy-nine thousand, one hundred eighty-five".

Divisors: 1 3 5 15 457 1371 2285 6855 15053447 45160341 75267235 225801705 6879425279 20638275837 34397126395 103191379185