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56343631 = 432415437
BaseRepresentation
bin1101011011101…
…1110001001111
310221000112221011
43112323301033
5103410444011
65331350051
71252625101
oct326736117
9127015834
1056343631
1129893893
1216a52327
13b899936
1476a9571
154e2e621
hex35bbc4f

56343631 has 8 divisors (see below), whose sum is σ = 57903824. Its totient is φ = 54794880.

The previous prime is 56343613. The next prime is 56343649. The reversal of 56343631 is 13634365.

It is an interprime number because it is at equal distance from previous prime (56343613) and next prime (56343649).

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 56343631 - 27 = 56343503 is a prime.

It is a super-2 number, since 2×563436312 = 6349209508528322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56343593 and 56343602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56343731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7645 + ... + 13081.

It is an arithmetic number, because the mean of its divisors is an integer number (7237978).

Almost surely, 256343631 is an apocalyptic number.

56343631 is a deficient number, since it is larger than the sum of its proper divisors (1560193).

56343631 is a wasteful number, since it uses less digits than its factorization.

56343631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5721.

The product of its digits is 19440, while the sum is 31.

The square root of 56343631 is about 7506.2394712666. The cubic root of 56343631 is about 383.3671918843.

Adding to 56343631 its reverse (13634365), we get a palindrome (69977996).

The spelling of 56343631 in words is "fifty-six million, three hundred forty-three thousand, six hundred thirty-one".

Divisors: 1 43 241 5437 10363 233791 1310317 56343631