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56344340 = 22513375857
BaseRepresentation
bin1101011011101…
…1111100010100
310221000120220102
43112323330110
5103411004330
65331353232
71252630133
oct326737424
9127016812
1056344340
1129894378
1216a52818
13b89a060
1476a991a
154e2e945
hex35bbf14

56344340 has 48 divisors (see below), whose sum is σ = 130891152. Its totient is φ = 20238336.

The previous prime is 56344289. The next prime is 56344349. The reversal of 56344340 is 4344365.

It can be written as a sum of positive squares in 8 ways, for example, as 3083536 + 53260804 = 1756^2 + 7298^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56344349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6692 + ... + 12548.

It is an arithmetic number, because the mean of its divisors is an integer number (2726899).

Almost surely, 256344340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56344340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65445576).

56344340 is an abundant number, since it is smaller than the sum of its proper divisors (74546812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56344340 is a wasteful number, since it uses less digits than its factorization.

56344340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5916 (or 5914 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 56344340 is about 7506.2866984948. The cubic root of 56344340 is about 383.3687999111.

The spelling of 56344340 in words is "fifty-six million, three hundred forty-four thousand, three hundred forty".

Divisors: 1 2 4 5 10 13 20 26 37 52 65 74 130 148 185 260 370 481 740 962 1924 2405 4810 5857 9620 11714 23428 29285 58570 76141 117140 152282 216709 304564 380705 433418 761410 866836 1083545 1522820 2167090 2817217 4334180 5634434 11268868 14086085 28172170 56344340