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56869349 = 431322543
BaseRepresentation
bin1101100011110…
…0000111100101
310222000021002012
43120330013211
5104024304344
65350524005
71260244565
oct330740745
9128007065
1056869349
112a112869
1217066605
13ba22004
1477a4da5
154ed529e
hex363c1e5

56869349 has 4 divisors (see below), whose sum is σ = 58191936. Its totient is φ = 55546764.

The previous prime is 56869343. The next prime is 56869361. The reversal of 56869349 is 94396865.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56869349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56869297 and 56869306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56869343) 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, 661229 + ... + 661314.

It is an arithmetic number, because the mean of its divisors is an integer number (14547984).

Almost surely, 256869349 is an apocalyptic number.

It is an amenable number.

56869349 is a deficient number, since it is larger than the sum of its proper divisors (1322587).

56869349 is a wasteful number, since it uses less digits than its factorization.

56869349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322586.

The product of its digits is 1399680, while the sum is 50.

The square root of 56869349 is about 7541.1768975406. The cubic root of 56869349 is about 384.5558469411. Note that the first 3 decimals are identical.

The spelling of 56869349 in words is "fifty-six million, eight hundred sixty-nine thousand, three hundred forty-nine".

Divisors: 1 43 1322543 56869349