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48723891 = 3161310069
BaseRepresentation
bin1011100111011…
…1011110110011
310101200102121120
42321313132303
544433131031
64500153323
71131101106
oct271673663
9111612546
1048723891
1125559a87
1214398843
13a12c608
14668473d
154426a96
hex2e777b3

48723891 has 8 divisors (see below), whose sum is σ = 65011920. Its totient is φ = 32459232.

The previous prime is 48723889. The next prime is 48723901. The reversal of 48723891 is 19832784.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 48723891 - 21 = 48723889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (48723881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196 + ... + 9873.

It is an arithmetic number, because the mean of its divisors is an integer number (8126490).

Almost surely, 248723891 is an apocalyptic number.

48723891 is a deficient number, since it is larger than the sum of its proper divisors (16288029).

48723891 is a wasteful number, since it uses less digits than its factorization.

48723891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11685.

The product of its digits is 96768, while the sum is 42.

The square root of 48723891 is about 6980.2500671538. The cubic root of 48723891 is about 365.2419512956.

The spelling of 48723891 in words is "forty-eight million, seven hundred twenty-three thousand, eight hundred ninety-one".

Divisors: 1 3 1613 4839 10069 30207 16241297 48723891