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157094730 = 232513134269
BaseRepresentation
bin10010101110100…
…01001101001010
3101221121020110100
421113101031022
5310204012410
623331030230
73615166062
oct1127211512
9357536410
10157094730
1180748661
124473b376
1326714280
1416c143a2
15dbd18c0
hex95d134a

157094730 has 48 divisors (see below), whose sum is σ = 439868520. Its totient is φ = 38669184.

The previous prime is 157094713. The next prime is 157094731. The reversal of 157094730 is 37490751.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 132917841 + 24176889 = 11529^2 + 4917^2 .

It is not an unprimeable number, because it can be changed into a prime (157094731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65965 + ... + 68304.

Almost surely, 2157094730 is an apocalyptic number.

157094730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157094730 is an abundant number, since it is smaller than the sum of its proper divisors (282773790).

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

157094730 is a wasteful number, since it uses less digits than its factorization.

157094730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134295 (or 134292 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 157094730 is about 12533.7436546309. The cubic root of 157094730 is about 539.5775502561.

The spelling of 157094730 in words is "one hundred fifty-seven million, ninety-four thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 30 39 45 65 78 90 117 130 195 234 390 585 1170 134269 268538 402807 671345 805614 1208421 1342690 1745497 2014035 2416842 3490994 4028070 5236491 6042105 8727485 10472982 12084210 15709473 17454970 26182455 31418946 52364910 78547365 157094730