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157112571 = 37211473
BaseRepresentation
bin10010101110101…
…01100011111011
3101221122010221010
421113111203323
5310210100241
623331245003
73615302100
oct1127254373
9357563833
10157112571
1180760000
1244749763
132671c425
1416c1aaa7
15dbd6d16
hex95d58fb

157112571 has 60 divisors (see below), whose sum is σ = 271723560. Its totient is φ = 80498880.

The previous prime is 157112567. The next prime is 157112573. The reversal of 157112571 is 175211751.

It is not a de Polignac number, because 157112571 - 22 = 157112567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157112573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2152191 + ... + 2152263.

It is an arithmetic number, because the mean of its divisors is an integer number (4528726).

Almost surely, 2157112571 is an apocalyptic number.

157112571 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

157112571 is a deficient number, since it is larger than the sum of its proper divisors (114610989).

157112571 is an frugal number, since it uses more digits than its factorization.

157112571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 94 counting only the distinct ones).

The product of its digits is 2450, while the sum is 30.

The square root of 157112571 is about 12534.4553531456. The cubic root of 157112571 is about 539.5979758059.

The spelling of 157112571 in words is "one hundred fifty-seven million, one hundred twelve thousand, five hundred seventy-one".

Divisors: 1 3 7 11 21 33 49 73 77 121 147 219 231 363 511 539 803 847 1331 1533 1617 2409 2541 3577 3993 5621 5929 8833 9317 10731 14641 16863 17787 26499 27951 39347 43923 61831 65219 97163 102487 118041 185493 195657 291489 307461 432817 680141 717409 1068793 1298451 2040423 2152227 3206379 4760987 7481551 14282961 22444653 52370857 157112571