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48538157 = 311565747
BaseRepresentation
bin1011100100101…
…0001000101101
310101022222211112
42321022020231
544411210112
64452201405
71126365443
oct271121055
9111288745
1048538157
1125442488
1214309265
13a095c05
146636b93
1543dba22
hex2e4a22d

48538157 has 4 divisors (see below), whose sum is σ = 50103936. Its totient is φ = 46972380.

The previous prime is 48538109. The next prime is 48538183. The reversal of 48538157 is 75183584.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48538157 - 26 = 48538093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48538057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782843 + ... + 782904.

It is an arithmetic number, because the mean of its divisors is an integer number (12525984).

Almost surely, 248538157 is an apocalyptic number.

It is an amenable number.

48538157 is a deficient number, since it is larger than the sum of its proper divisors (1565779).

48538157 is a wasteful number, since it uses less digits than its factorization.

48538157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565778.

The product of its digits is 134400, while the sum is 41.

The square root of 48538157 is about 6966.9331129271. The cubic root of 48538157 is about 364.7772632421. Note that the first 3 decimals are identical.

The spelling of 48538157 in words is "forty-eight million, five hundred thirty-eight thousand, one hundred fifty-seven".

Divisors: 1 31 1565747 48538157