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56794781 = 1912723537
BaseRepresentation
bin1101100010100…
…1111010011101
310221212110210102
43120221322131
5104014413111
65345150445
71256514311
oct330517235
9127773712
1056794781
112a07183a
121702b425
13b9c70a4
147785b41
154ebd13b
hex3629e9d

56794781 has 8 divisors (see below), whose sum is σ = 60257280. Its totient is φ = 53379648.

The previous prime is 56794769. The next prime is 56794813. The reversal of 56794781 is 18749765.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56794781 is a prime.

It is a super-2 number, since 2×567947812 = 6451294297675922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56794711) 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, 9356 + ... + 14181.

It is an arithmetic number, because the mean of its divisors is an integer number (7532160).

Almost surely, 256794781 is an apocalyptic number.

It is an amenable number.

56794781 is a deficient number, since it is larger than the sum of its proper divisors (3462499).

56794781 is a wasteful number, since it uses less digits than its factorization.

56794781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23683.

The product of its digits is 423360, while the sum is 47.

The square root of 56794781 is about 7536.2312199136. The cubic root of 56794781 is about 384.3876948327.

It can be divided in two parts, 56794 and 781, that added together give a palindrome (57575).

The spelling of 56794781 in words is "fifty-six million, seven hundred ninety-four thousand, seven hundred eighty-one".

Divisors: 1 19 127 2413 23537 447203 2989199 56794781