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157287300169 is a prime number
BaseRepresentation
bin1001001001111100001…
…1011011110001001001
3120000222121210201101211
42102133003123301021
510034111022101134
6200131244413121
714235503664226
oct2223703336111
9500877721354
10157287300169
116078364267a
12265972471a1
1311aa82577ac
14788153694d
154158749764
hex249f0dbc49

157287300169 has 2 divisors, whose sum is σ = 157287300170. Its totient is φ = 157287300168.

The previous prime is 157287300143. The next prime is 157287300197. The reversal of 157287300169 is 961003782751.

It is a happy number.

157287300169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157281248569 + 6051600 = 396587^2 + 2460^2 .

It is a cyclic number.

It is not a de Polignac number, because 157287300169 - 29 = 157287299657 is a prime.

It is a super-2 number, since 2×1572873001692 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (157287300119) by changing a digit.

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 as a sum of consecutive naturals, namely, 78643650084 + 78643650085.

It is an arithmetic number, because the mean of its divisors is an integer number (78643650085).

Almost surely, 2157287300169 is an apocalyptic number.

It is an amenable number.

157287300169 is a deficient number, since it is larger than the sum of its proper divisors (1).

157287300169 is an equidigital number, since it uses as much as digits as its factorization.

157287300169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 157287300169 in words is "one hundred fifty-seven billion, two hundred eighty-seven million, three hundred thousand, one hundred sixty-nine".