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157172202708 = 22313097683559
BaseRepresentation
bin1001001001100000110…
…0010111110011010100
3120000200121020011100220
42102120030113303110
510033342040441313
6200112013434340
714232605452143
oct2223014276324
9500617204326
10157172202708
116072467a204
122656479b9b0
1311a8a4591a1
14787013575a
15414d5b1823
hex2498317cd4

157172202708 has 12 divisors (see below), whose sum is σ = 366735139680. Its totient is φ = 52390734232.

The previous prime is 157172202661. The next prime is 157172202763. The reversal of 157172202708 is 807202271751.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 157172202708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6548841768 + ... + 6548841791.

It is an arithmetic number, because the mean of its divisors is an integer number (30561261640).

Almost surely, 2157172202708 is an apocalyptic number.

It is an amenable number.

157172202708 is an abundant number, since it is smaller than the sum of its proper divisors (209562936972).

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

157172202708 is a wasteful number, since it uses less digits than its factorization.

157172202708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13097683566 (or 13097683564 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 42.

The spelling of 157172202708 in words is "one hundred fifty-seven billion, one hundred seventy-two million, two hundred two thousand, seven hundred eight".

Divisors: 1 2 3 4 6 12 13097683559 26195367118 39293050677 52390734236 78586101354 157172202708