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157122020766 = 2388129724181
BaseRepresentation
bin1001001001010100110…
…0111100010110011110
3120000120002210122200110
42102111030330112132
510033241214131031
6200103022110450
714231426066124
oct2222514742636
9500502718613
10157122020766
11606a9314827
122654ba1b426
1311a7cc39029
1478675d1914
154148e9cc46
hex249533c59e

157122020766 has 16 divisors (see below), whose sum is σ = 314600742288. Its totient is φ = 52314556800.

The previous prime is 157122020749. The next prime is 157122020789. The reversal of 157122020766 is 667020221751.

157122020766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14856805 + ... + 14867376.

It is an arithmetic number, because the mean of its divisors is an integer number (19662546393).

Almost surely, 2157122020766 is an apocalyptic number.

157122020766 is an abundant number, since it is smaller than the sum of its proper divisors (157478721522).

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

157122020766 is a wasteful number, since it uses less digits than its factorization.

157122020766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29725067.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 157122020766 in words is "one hundred fifty-seven billion, one hundred twenty-two million, twenty thousand, seven hundred sixty-six".

Divisors: 1 2 3 6 881 1762 2643 5286 29724181 59448362 89172543 178345086 26187003461 52374006922 78561010383 157122020766