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56070228 = 22323223911
BaseRepresentation
bin1101010111100…
…1000001010100
310220111122220010
43111321001110
5103323221403
65321440220
71250406024
oct325710124
9126448803
1056070228
1129717435
1216940070
13b802366
147637a84
154dc8603
hex3579054

56070228 has 48 divisors (see below), whose sum is σ = 137281536. Its totient is φ = 17777760.

The previous prime is 56070187. The next prime is 56070229. The reversal of 56070228 is 82207065.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 56070195 and 56070204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56070229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61093 + ... + 62003.

It is an arithmetic number, because the mean of its divisors is an integer number (2860032).

Almost surely, 256070228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56070228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68640768).

56070228 is an abundant number, since it is smaller than the sum of its proper divisors (81211308).

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

56070228 is a wasteful number, since it uses less digits than its factorization.

56070228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164 (or 1162 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 56070228 is about 7488.0056089723. The cubic root of 56070228 is about 382.7460999025.

The spelling of 56070228 in words is "fifty-six million, seventy thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 223 276 446 669 892 911 1338 1822 2676 2733 3644 5129 5466 10258 10932 15387 20516 20953 30774 41906 61548 62859 83812 125718 203153 251436 406306 609459 812612 1218918 2437836 4672519 9345038 14017557 18690076 28035114 56070228