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16102122191 = 119237135043
BaseRepresentation
bin11101111111100001…
…01110001011001111
31112120011222120002222
432333300232023033
5230434120402231
611221444205555
71110011531441
oct167760561317
945504876088
1016102122191
116913256801
1231546998bb
131697c9096c
14aca756491
1564396927b
hex3bfc2e2cf

16102122191 has 4 divisors (see below), whose sum is σ = 16102376472. Its totient is φ = 16101867912.

The previous prime is 16102122107. The next prime is 16102122229. The reversal of 16102122191 is 19122120161.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16102122191 - 222 = 16097927887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16102122191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16102125191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51716 + ... + 186758.

It is an arithmetic number, because the mean of its divisors is an integer number (4025594118).

Almost surely, 216102122191 is an apocalyptic number.

16102122191 is a deficient number, since it is larger than the sum of its proper divisors (254281).

16102122191 is a wasteful number, since it uses less digits than its factorization.

16102122191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254280.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 16102122191 in words is "sixteen billion, one hundred two million, one hundred twenty-two thousand, one hundred ninety-one".

Divisors: 1 119237 135043 16102122191