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48992457 = 316330819
BaseRepresentation
bin1011101011100…
…1000011001001
310102012002000110
42322321003021
5100020224312
64510024533
71133300103
oct272710311
9112162013
1048992457
1125722838
12144a8149
13a1c4927
146714573
15447b43c
hex2eb90c9

48992457 has 4 divisors (see below), whose sum is σ = 65323280. Its totient is φ = 32661636.

The previous prime is 48992399. The next prime is 48992473. The reversal of 48992457 is 75429984.

48992457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 48992457 - 212 = 48988361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48992497) 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 3 ways as a sum of consecutive naturals, for example, 8165407 + ... + 8165412.

It is an arithmetic number, because the mean of its divisors is an integer number (16330820).

Almost surely, 248992457 is an apocalyptic number.

It is an amenable number.

48992457 is a deficient number, since it is larger than the sum of its proper divisors (16330823).

48992457 is a wasteful number, since it uses less digits than its factorization.

48992457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16330822.

The product of its digits is 725760, while the sum is 48.

The square root of 48992457 is about 6999.4611935491. The cubic root of 48992457 is about 365.9117930707.

The spelling of 48992457 in words is "forty-eight million, nine hundred ninety-two thousand, four hundred fifty-seven".

Divisors: 1 3 16330819 48992457