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48231720 = 23335173771
BaseRepresentation
bin1011011111111…
…1010100101000
310100202102111000
42313333110220
544321403340
64441435000
71123651155
oct267772450
9110672430
1048231720
1125253229
121419ba60
139cb95a4
14659722c
15437ad30
hex2dff528

48231720 has 256 divisors, whose sum is σ = 177292800. Its totient is φ = 11612160.

The previous prime is 48231697. The next prime is 48231731. The reversal of 48231720 is 2713284.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 679285 + ... + 679355.

It is an arithmetic number, because the mean of its divisors is an integer number (692550).

Almost surely, 248231720 is an apocalyptic number.

48231720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 48231720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88646400).

48231720 is an abundant number, since it is smaller than the sum of its proper divisors (129061080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48231720 is a wasteful number, since it uses less digits than its factorization.

48231720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 48231720 is about 6944.9060468807. The cubic root of 48231720 is about 364.0079900029.

The spelling of 48231720 in words is "forty-eight million, two hundred thirty-one thousand, seven hundred twenty".