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157380306 = 231923193311
BaseRepresentation
bin10010110000101…
…10111011010010
3101222010202012020
421120112323102
5310242132211
623341112310
73620465466
oct1130267322
9358122166
10157380306
1180923176
1244858696
13267b4255
1416c8a4a6
15dc3b306
hex9616ed2

157380306 has 64 divisors (see below), whose sum is σ = 348641280. Its totient is φ = 47139840.

The previous prime is 157380259. The next prime is 157380313. The reversal of 157380306 is 603083751.

It is a happy number.

157380306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 505891 + ... + 506201.

It is an arithmetic number, because the mean of its divisors is an integer number (5447520).

Almost surely, 2157380306 is an apocalyptic number.

157380306 is an abundant number, since it is smaller than the sum of its proper divisors (191260974).

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

157380306 is a wasteful number, since it uses less digits than its factorization.

157380306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 157380306 is about 12545.1307685492. The cubic root of 157380306 is about 539.9043108911.

The spelling of 157380306 in words is "one hundred fifty-seven million, three hundred eighty thousand, three hundred six".

Divisors: 1 2 3 6 19 23 38 46 57 69 114 138 193 311 386 437 579 622 874 933 1158 1311 1866 2622 3667 4439 5909 7153 7334 8878 11001 11818 13317 14306 17727 21459 22002 26634 35454 42918 60023 84341 120046 135907 168682 180069 253023 271814 360138 407721 506046 815442 1140437 1380529 2280874 2761058 3421311 4141587 6842622 8283174 26230051 52460102 78690153 157380306