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56730205 = 5713112373
BaseRepresentation
bin1101100001101…
…0001001011101
310221202012012201
43120122021131
5104010331310
65343531501
71256125120
oct330321135
9127665181
1056730205
112a028274
1216bb9b91
13b9a388c
14776a3b7
154ea8e3a
hex361a25d

56730205 has 16 divisors (see below), whose sum is σ = 78401664. Its totient is φ = 38600640.

The previous prime is 56730203. The next prime is 56730221. The reversal of 56730205 is 50203765.

56730205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56730205 - 21 = 56730203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56730203) 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, 1602 + ... + 10771.

It is an arithmetic number, because the mean of its divisors is an integer number (4900104).

Almost surely, 256730205 is an apocalyptic number.

It is an amenable number.

56730205 is a deficient number, since it is larger than the sum of its proper divisors (21671459).

56730205 is a wasteful number, since it uses less digits than its factorization.

56730205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12516.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 56730205 is about 7531.9456317740. The cubic root of 56730205 is about 384.2419558935.

The spelling of 56730205 in words is "fifty-six million, seven hundred thirty thousand, two hundred five".

Divisors: 1 5 7 35 131 655 917 4585 12373 61865 86611 433055 1620863 8104315 11346041 56730205