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56805974 = 228402987
BaseRepresentation
bin1101100010110…
…0101001010110
310221220001010222
43120230221112
5104020242344
65345314342
71256562041
oct330545126
9127801128
1056805974
112a07a195
12170359b2
13b9cc204
147789c58
154ec15ee
hex362ca56

56805974 has 4 divisors (see below), whose sum is σ = 85208964. Its totient is φ = 28402986.

The previous prime is 56805971. The next prime is 56805997. The reversal of 56805974 is 47950865.

56805974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47950865 = 59590173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56805971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14201492 + ... + 14201495.

It is an arithmetic number, because the mean of its divisors is an integer number (21302241).

Almost surely, 256805974 is an apocalyptic number.

56805974 is a deficient number, since it is larger than the sum of its proper divisors (28402990).

56805974 is a wasteful number, since it uses less digits than its factorization.

56805974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28402989.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 56805974 is about 7536.9737958945. The cubic root of 56805974 is about 384.4129446225.

The spelling of 56805974 in words is "fifty-six million, eight hundred five thousand, nine hundred seventy-four".

Divisors: 1 2 28402987 56805974