Search a number
-
+
56730570 = 23513145463
BaseRepresentation
bin1101100001101…
…0001111001010
310221202012201020
43120122033022
5104010334240
65343533310
71256126151
oct330321712
9127665636
1056730570
112a028576
1216bba236
13b9a3ab0
14776a598
154ea90d0
hex361a3ca

56730570 has 32 divisors (see below), whose sum is σ = 146627712. Its totient is φ = 13964352.

The previous prime is 56730533. The next prime is 56730571. The reversal of 56730570 is 7503765.

It is a happy number.

56730570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×567305704 (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (56730571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72342 + ... + 73121.

It is an arithmetic number, because the mean of its divisors is an integer number (4582116).

Almost surely, 256730570 is an apocalyptic number.

56730570 is an abundant number, since it is smaller than the sum of its proper divisors (89897142).

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

56730570 is a wasteful number, since it uses less digits than its factorization.

56730570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145486.

The product of its (nonzero) digits is 22050, while the sum is 33.

The square root of 56730570 is about 7531.9698618622. The cubic root of 56730570 is about 384.2427799578.

The spelling of 56730570 in words is "fifty-six million, seven hundred thirty thousand, five hundred seventy".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 145463 290926 436389 727315 872778 1454630 1891019 2181945 3782038 4363890 5673057 9455095 11346114 18910190 28365285 56730570