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56346397 = 67840991
BaseRepresentation
bin1101011011110…
…0011100011101
310221000200201121
43112330130131
5103411041042
65331410541
71252636132
oct326743435
9127020647
1056346397
1129895978
1216a53a51
13b89ac83
1476aa589
154e30367
hex35bc71d

56346397 has 4 divisors (see below), whose sum is σ = 57187456. Its totient is φ = 55505340.

The previous prime is 56346379. The next prime is 56346413. The reversal of 56346397 is 79364365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79364365 = 515872873.

It is a cyclic number.

It is not a de Polignac number, because 56346397 - 211 = 56344349 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 (56346317) 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, 420429 + ... + 420562.

It is an arithmetic number, because the mean of its divisors is an integer number (14296864).

Almost surely, 256346397 is an apocalyptic number.

It is an amenable number.

56346397 is a deficient number, since it is larger than the sum of its proper divisors (841059).

56346397 is an equidigital number, since it uses as much as digits as its factorization.

56346397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841058.

The product of its digits is 408240, while the sum is 43.

The square root of 56346397 is about 7506.4237157251. The cubic root of 56346397 is about 383.3734651536.

The spelling of 56346397 in words is "fifty-six million, three hundred forty-six thousand, three hundred ninety-seven".

Divisors: 1 67 840991 56346397