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158315157 = 327111317573
BaseRepresentation
bin10010110111110…
…11001010010101
3102000220020120100
421123323022111
5311012041112
623413124313
73631441140
oct1133731225
9360806510
10158315157
1181401580
1245029699
1326a50910
1417051057
15dd732dc
hex96fb295

158315157 has 48 divisors (see below), whose sum is σ = 307052928. Its totient is φ = 75911040.

The previous prime is 158315149. The next prime is 158315159. The reversal of 158315157 is 751513851.

It is not a de Polignac number, because 158315157 - 23 = 158315149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158315159) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 223 + ... + 17795.

It is an arithmetic number, because the mean of its divisors is an integer number (6396936).

Almost surely, 2158315157 is an apocalyptic number.

It is an amenable number.

158315157 is a deficient number, since it is larger than the sum of its proper divisors (148737771).

158315157 is a wasteful number, since it uses less digits than its factorization.

158315157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17610 (or 17607 counting only the distinct ones).

The product of its digits is 21000, while the sum is 36.

The square root of 158315157 is about 12582.3351171394. The cubic root of 158315157 is about 540.9712253913.

The spelling of 158315157 in words is "one hundred fifty-eight million, three hundred fifteen thousand, one hundred fifty-seven".

Divisors: 1 3 7 9 11 13 21 33 39 63 77 91 99 117 143 231 273 429 693 819 1001 1287 3003 9009 17573 52719 123011 158157 193303 228449 369033 579909 685347 1107099 1353121 1599143 1739727 2056041 2512939 4059363 4797429 7538817 12178089 14392287 17590573 22616451 52771719 158315157