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56540141 = 723438167
BaseRepresentation
bin1101011110101…
…1101111101101
310221101112111022
43113223233231
5103433241031
65335503525
71254404030
oct327535755
9127345438
1056540141
1129a08499
1216b27ba5
13b938208
14771b017
154e6c97b
hex35ebbed

56540141 has 16 divisors (see below), whose sum is σ = 69003264. Its totient is φ = 45272304.

The previous prime is 56540131. The next prime is 56540173. The reversal of 56540141 is 14104565.

It is not a de Polignac number, because 56540141 - 222 = 52345837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56540141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56540101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2840 + ... + 11006.

It is an arithmetic number, because the mean of its divisors is an integer number (4312704).

Almost surely, 256540141 is an apocalyptic number.

It is an amenable number.

56540141 is a deficient number, since it is larger than the sum of its proper divisors (12463123).

56540141 is a wasteful number, since it uses less digits than its factorization.

56540141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8240.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 56540141 is about 7519.3178546993. The cubic root of 56540141 is about 383.8123653800.

The spelling of 56540141 in words is "fifty-six million, five hundred forty thousand, one hundred forty-one".

Divisors: 1 7 23 43 161 301 989 6923 8167 57169 187841 351181 1314887 2458267 8077163 56540141