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56310938 = 228155469
BaseRepresentation
bin1101011011001…
…1110010011010
310220221220002022
43112303302122
5103403422223
65330534442
71252430555
oct326636232
9126856068
1056310938
1129871272
1216a37422
13b887aa8
14769b69c
154e24ac8
hex35b3c9a

56310938 has 4 divisors (see below), whose sum is σ = 84466410. Its totient is φ = 28155468.

The previous prime is 56310937. The next prime is 56310941. The reversal of 56310938 is 83901365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83901365 = 516780273.

It can be written as a sum of positive squares in only one way, i.e., 38477209 + 17833729 = 6203^2 + 4223^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56310898 and 56310907.

It is not an unprimeable number, because it can be changed into a prime (56310931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14077733 + ... + 14077736.

Almost surely, 256310938 is an apocalyptic number.

56310938 is a deficient number, since it is larger than the sum of its proper divisors (28155472).

56310938 is a wasteful number, since it uses less digits than its factorization.

56310938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28155471.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 56310938 is about 7504.0614336504. The cubic root of 56310938 is about 383.2930288227.

The spelling of 56310938 in words is "fifty-six million, three hundred ten thousand, nine hundred thirty-eight".

Divisors: 1 2 28155469 56310938