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56083145 = 511216629
BaseRepresentation
bin1101010111110…
…0001011001001
310220112022121112
43111330023021
5103324130040
65322020105
71250461466
oct325741311
9126468545
1056083145
1129726108
1216947635
13b8081c1
14763c66d
154dcc365
hex357c2c9

56083145 has 4 divisors (see below), whose sum is σ = 67299780. Its totient is φ = 44866512.

The previous prime is 56083141. The next prime is 56083151. The reversal of 56083145 is 54138065.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54138065 = 510827613.

It can be written as a sum of positive squares in 2 ways, for example, as 34058896 + 22024249 = 5836^2 + 4693^2 .

It is a cyclic number.

It is not a de Polignac number, because 56083145 - 22 = 56083141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56083141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5608310 + ... + 5608319.

It is an arithmetic number, because the mean of its divisors is an integer number (16824945).

Almost surely, 256083145 is an apocalyptic number.

It is an amenable number.

56083145 is a deficient number, since it is larger than the sum of its proper divisors (11216635).

56083145 is a wasteful number, since it uses less digits than its factorization.

56083145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11216634.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 56083145 is about 7488.8680720120. The cubic root of 56083145 is about 382.7754889499.

The spelling of 56083145 in words is "fifty-six million, eighty-three thousand, one hundred forty-five".

Divisors: 1 5 11216629 56083145