Search a number
-
+
56754745 = 561718397
BaseRepresentation
bin1101100010000…
…0001000111001
310221210102212121
43120200020321
5104012122440
65344241241
71256256505
oct330401071
9127712777
1056754745
112a044753
1217010221
13b9b1ab8
147775305
154eb134a
hex3620239

56754745 has 8 divisors (see below), whose sum is σ = 68219784. Its totient is φ = 45327744.

The previous prime is 56754743. The next prime is 56754757. The reversal of 56754745 is 54745765.

It can be written as a sum of positive squares in 4 ways, for example, as 3523129 + 53231616 = 1877^2 + 7296^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 56754745 - 21 = 56754743 is a prime.

It is a super-2 number, since 2×567547452 = 6442202160030050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56754743) 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, 6114 + ... + 12283.

It is an arithmetic number, because the mean of its divisors is an integer number (8527473).

Almost surely, 256754745 is an apocalyptic number.

It is an amenable number.

56754745 is a deficient number, since it is larger than the sum of its proper divisors (11465039).

56754745 is a wasteful number, since it uses less digits than its factorization.

56754745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19019.

The product of its digits is 588000, while the sum is 43.

The square root of 56754745 is about 7533.5745167882. The cubic root of 56754745 is about 384.2973522401.

The spelling of 56754745 in words is "fifty-six million, seven hundred fifty-four thousand, seven hundred forty-five".

Divisors: 1 5 617 3085 18397 91985 11350949 56754745