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157157286164 = 2239289321541
BaseRepresentation
bin1001001001011101001…
…1011110000100010100
3120000122120011022201022
42102113103132010110
510033324231124124
6200110322020312
714232334614524
oct2222723360424
9500576138638
10157157286164
116071721118a
122655b7a7698
1311a87335828
14786c171684
15414c116c5e
hex24974de114

157157286164 has 6 divisors (see below), whose sum is σ = 275025250794. Its totient is φ = 78578643080.

The previous prime is 157157286161. The next prime is 157157286173. The reversal of 157157286164 is 461682751751.

It can be written as a sum of positive squares in only one way, i.e., 105305442064 + 51851844100 = 324508^2 + 227710^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157157286161) by changing a digit.

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 as a sum of consecutive naturals, namely, 19644660767 + ... + 19644660774.

It is an arithmetic number, because the mean of its divisors is an integer number (45837541799).

Almost surely, 2157157286164 is an apocalyptic number.

It is an amenable number.

157157286164 is a deficient number, since it is larger than the sum of its proper divisors (117867964630).

157157286164 is a wasteful number, since it uses less digits than its factorization.

157157286164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39289321545 (or 39289321543 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 53.

The spelling of 157157286164 in words is "one hundred fifty-seven billion, one hundred fifty-seven million, two hundred eighty-six thousand, one hundred sixty-four".

Divisors: 1 2 4 39289321541 78578643082 157157286164