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15668072106 = 2319538929137
BaseRepresentation
bin11101001011110001…
…11100111010101010
31111102221020112022220
432211320330322222
5224042011301411
611110421054510
71063161262341
oct164570747252
944387215286
1015668072106
116710244525
123053257436
131629089aab
14a88c4ab58
1561a7cbb06
hex3a5e3ceaa

15668072106 has 64 divisors (see below), whose sum is σ = 33986563200. Its totient is φ = 4799748096.

The previous prime is 15668072051. The next prime is 15668072131. The reversal of 15668072106 is 60127086651.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 523170 + ... + 552306.

It is an arithmetic number, because the mean of its divisors is an integer number (531040050).

Almost surely, 215668072106 is an apocalyptic number.

15668072106 is an abundant number, since it is smaller than the sum of its proper divisors (18318491094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15668072106 is a wasteful number, since it uses less digits than its factorization.

15668072106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29303.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 15668072106 in words is "fifteen billion, six hundred sixty-eight million, seventy-two thousand, one hundred six".

Divisors: 1 2 3 6 19 38 53 57 89 106 114 159 178 267 318 534 1007 1691 2014 3021 3382 4717 5073 6042 9434 10146 14151 28302 29137 58274 87411 89623 174822 179246 268869 537738 553603 1107206 1544261 1660809 2593193 3088522 3321618 4632783 5186386 7779579 9265566 15559158 29340959 49270667 58681918 88022877 98541334 137439229 147812001 176045754 274878458 295624002 412317687 824635374 2611345351 5222690702 7834036053 15668072106