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56448030 = 2351881601
BaseRepresentation
bin1101011101010…
…1010000011110
310221012212010210
43113111100132
5103422314110
65333513250
71253541342
oct327252036
9127185123
1056448030
1129955271
1216aa2826
13b905302
1476d5622
154e50520
hex35d541e

56448030 has 16 divisors (see below), whose sum is σ = 135475344. Its totient is φ = 15052800.

The previous prime is 56448013. The next prime is 56448037. The reversal of 56448030 is 3084465.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1881601 = 56448030 / (5 + 6 + 4 + 4 + 8 + 0 + 3 + 0).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56448037) 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, 940771 + ... + 940830.

It is an arithmetic number, because the mean of its divisors is an integer number (8467209).

Almost surely, 256448030 is an apocalyptic number.

56448030 is an abundant number, since it is smaller than the sum of its proper divisors (79027314).

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

56448030 is a wasteful number, since it uses less digits than its factorization.

56448030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881611.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 56448030 is about 7513.1904008883. The cubic root of 56448030 is about 383.6038258899.

The spelling of 56448030 in words is "fifty-six million, four hundred forty-eight thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 1881601 3763202 5644803 9408005 11289606 18816010 28224015 56448030