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56015413 = 151409907
BaseRepresentation
bin1101010110101…
…1101000110101
310220101212200221
43111223220311
5103314443123
65320334341
71250060146
oct325535065
9126355627
1056015413
112968a233
12169143b1
13b7b341c
147621acd
154db725d
hex356ba35

56015413 has 8 divisors (see below), whose sum is σ = 56586560. Its totient is φ = 55447200.

The previous prime is 56015381. The next prime is 56015423. The reversal of 56015413 is 31451065.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56015413 - 25 = 56015381 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 (56015423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61306 + ... + 62212.

It is an arithmetic number, because the mean of its divisors is an integer number (7073320).

Almost surely, 256015413 is an apocalyptic number.

It is an amenable number.

56015413 is a deficient number, since it is larger than the sum of its proper divisors (571147).

56015413 is a wasteful number, since it uses less digits than its factorization.

56015413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 56015413 is about 7484.3445270778. The cubic root of 56015413 is about 382.6213333447.

Adding to 56015413 its reverse (31451065), we get a palindrome (87466478).

The spelling of 56015413 in words is "fifty-six million, fifteen thousand, four hundred thirteen".

Divisors: 1 151 409 907 61759 136957 370963 56015413