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48118457 = 251191707
BaseRepresentation
bin1011011110001…
…1101010111001
310100112200010002
42313203222321
544304242312
64435202345
71123000022
oct267435271
9110480102
1048118457
1125186122
12141463b5
139c79b7a
146567c49
1543574c2
hex2de3ab9

48118457 has 4 divisors (see below), whose sum is σ = 48310416. Its totient is φ = 47926500.

The previous prime is 48118423. The next prime is 48118481. The reversal of 48118457 is 75481184.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2k-48118457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48118457.

It is not an unprimeable number, because it can be changed into a prime (48118157) 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, 95603 + ... + 96104.

It is an arithmetic number, because the mean of its divisors is an integer number (12077604).

Almost surely, 248118457 is an apocalyptic number.

It is an amenable number.

48118457 is a deficient number, since it is larger than the sum of its proper divisors (191959).

48118457 is a wasteful number, since it uses less digits than its factorization.

48118457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191958.

The product of its digits is 35840, while the sum is 38.

The square root of 48118457 is about 6936.7468600202. The cubic root of 48118457 is about 363.7228322155.

The spelling of 48118457 in words is "forty-eight million, one hundred eighteen thousand, four hundred fifty-seven".

Divisors: 1 251 191707 48118457