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48765981 = 3111477757
BaseRepresentation
bin1011101000000…
…1110000011101
310101202120100110
42322001300131
544441002411
64501120233
71131334605
oct272016035
9111676313
1048765981
1125588670
12143b9079
13a145814
146695c05
1544342a6
hex2e81c1d

48765981 has 8 divisors (see below), whose sum is σ = 70932384. Its totient is φ = 29555120.

The previous prime is 48765973. The next prime is 48766001. The reversal of 48765981 is 18956784.

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

It is a cyclic number.

It is not a de Polignac number, because 48765981 - 23 = 48765973 is a prime.

It is a super-2 number, since 2×487659812 = 4756241805784722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 48765981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48765961) 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, 738846 + ... + 738911.

It is an arithmetic number, because the mean of its divisors is an integer number (8866548).

Almost surely, 248765981 is an apocalyptic number.

It is an amenable number.

48765981 is a deficient number, since it is larger than the sum of its proper divisors (22166403).

48765981 is a wasteful number, since it uses less digits than its factorization.

48765981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477771.

The product of its digits is 483840, while the sum is 48.

The square root of 48765981 is about 6983.2643512902. The cubic root of 48765981 is about 365.3470921131.

The spelling of 48765981 in words is "forty-eight million, seven hundred sixty-five thousand, nine hundred eighty-one".

Divisors: 1 3 11 33 1477757 4433271 16255327 48765981