Search a number
-
+
254534157 = 344373079
BaseRepresentation
bin11110010101111…
…10001000001101
3122201221200020000
433022332020031
51010130043112
641131314513
76210335043
oct1712761015
9581850200
10254534157
11120750309
12712aba39
134096c437
1425b3a393
151752c7dc
hexf2be20d

254534157 has 20 divisors (see below), whose sum is σ = 389077920. Its totient is φ = 165740904.

The previous prime is 254534113. The next prime is 254534171. The reversal of 254534157 is 751435452.

It is not a de Polignac number, because 254534157 - 210 = 254533133 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254534057) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33057 + ... + 40022.

It is an arithmetic number, because the mean of its divisors is an integer number (19453896).

Almost surely, 2254534157 is an apocalyptic number.

254534157 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

254534157 is a deficient number, since it is larger than the sum of its proper divisors (134543763).

254534157 is an equidigital number, since it uses as much as digits as its factorization.

254534157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73134 (or 73125 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 254534157 is about 15954.1266448527. The cubic root of 254534157 is about 633.7461832339.

The spelling of 254534157 in words is "two hundred fifty-four million, five hundred thirty-four thousand, one hundred fifty-seven".

Divisors: 1 3 9 27 43 81 129 387 1161 3483 73079 219237 657711 1973133 3142397 5919399 9427191 28281573 84844719 254534157