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56129104 = 2417434799
BaseRepresentation
bin1101011000011…
…1011001010000
310220121122122201
43112013121100
5103332112404
65323012544
71251042463
oct326073120
9126548581
1056129104
1129757699
121696a154
13b8230b5
1476512da
154ddaca4
hex3587650

56129104 has 40 divisors (see below), whose sum is σ = 117849600. Its totient is φ = 25794048.

The previous prime is 56129093. The next prime is 56129113. The reversal of 56129104 is 40192165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9297 + ... + 14095.

It is an arithmetic number, because the mean of its divisors is an integer number (2946240).

Almost surely, 256129104 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 56129104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58924800).

56129104 is an abundant number, since it is smaller than the sum of its proper divisors (61720496).

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

56129104 is a wasteful number, since it uses less digits than its factorization.

56129104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4867 (or 4861 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 56129104 is about 7491.9359313865. The cubic root of 56129104 is about 382.8800193185.

The spelling of 56129104 in words is "fifty-six million, one hundred twenty-nine thousand, one hundred four".

Divisors: 1 2 4 8 16 17 34 43 68 86 136 172 272 344 688 731 1462 2924 4799 5848 9598 11696 19196 38392 76784 81583 163166 206357 326332 412714 652664 825428 1305328 1650856 3301712 3508069 7016138 14032276 28064552 56129104