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157137357890 = 2561325634153
BaseRepresentation
bin1001001001011000011…
…1011100110001000010
3120000121011122212021002
42102112013130301002
510033304130423030
6200104330532002
714232003334562
oct2222607346102
9500534585232
10157137357890
1160706a3a837
1226554b97002
1311a83178c56
147869664da2
15414a4cc245
hex24961dcc42

157137357890 has 16 divisors (see below), whose sum is σ = 283308670008. Its totient is φ = 62752404096.

The previous prime is 157137357889. The next prime is 157137357913. The reversal of 157137357890 is 98753731751.

It is a happy number.

157137357890 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 29667651049 + 127469706841 = 172243^2 + 357029^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12810947 + ... + 12823206.

Almost surely, 2157137357890 is an apocalyptic number.

157137357890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157137357890 is a deficient number, since it is larger than the sum of its proper divisors (126171312118).

157137357890 is a wasteful number, since it uses less digits than its factorization.

157137357890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25634773.

The product of its (nonzero) digits is 5556600, while the sum is 56.

The spelling of 157137357890 in words is "one hundred fifty-seven billion, one hundred thirty-seven million, three hundred fifty-seven thousand, eight hundred ninety".

Divisors: 1 2 5 10 613 1226 3065 6130 25634153 51268306 128170765 256341530 15713735789 31427471578 78568678945 157137357890