Search a number
-
+
157232055 = 3529379769
BaseRepresentation
bin10010101111100…
…10101110110111
3101221212012211110
421113302232313
5310222411210
623334010103
73616310331
oct1127625667
9357765743
10157232055
1180831852
12447a6933
1326761926
1416c4c451
15dc0c420
hex95f2bb7

157232055 has 32 divisors (see below), whose sum is σ = 267307200. Its totient is φ = 78769152.

The previous prime is 157232051. The next prime is 157232063. The reversal of 157232055 is 550232751.

It is not a de Polignac number, because 157232055 - 22 = 157232051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157232051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11211 + ... + 20979.

It is an arithmetic number, because the mean of its divisors is an integer number (8353350).

Almost surely, 2157232055 is an apocalyptic number.

157232055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

157232055 is a deficient number, since it is larger than the sum of its proper divisors (110075145).

157232055 is a wasteful number, since it uses less digits than its factorization.

157232055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9843.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 157232055 is about 12539.2206695632. The cubic root of 157232055 is about 539.7347291055.

The spelling of 157232055 in words is "one hundred fifty-seven million, two hundred thirty-two thousand, fifty-five".

Divisors: 1 3 5 15 29 37 87 111 145 185 435 555 1073 3219 5365 9769 16095 29307 48845 146535 283301 361453 849903 1084359 1416505 1807265 4249515 5421795 10482137 31446411 52410685 157232055