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56702130 = 23523372221
BaseRepresentation
bin1101100001001…
…1010010110010
310221200202200220
43120103102302
5104003432010
65343153510
71255650222
oct330232262
9127622626
1056702130
112a009171
1216ba5896
13b993b74
147760082
154ea0970
hex36134b2

56702130 has 64 divisors (see below), whose sum is σ = 145905408. Its totient is φ = 14065920.

The previous prime is 56702119. The next prime is 56702183. The reversal of 56702130 is 3120765.

It is a self number, because there is not a number n which added to its sum of digits gives 56702130.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24420 + ... + 26640.

It is an arithmetic number, because the mean of its divisors is an integer number (2279772).

Almost surely, 256702130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56702130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72952704).

56702130 is an abundant number, since it is smaller than the sum of its proper divisors (89203278).

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

56702130 is a wasteful number, since it uses less digits than its factorization.

56702130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 56702130 is about 7530.0816728638. The cubic root of 56702130 is about 384.1785600773.

Adding to 56702130 its reverse (3120765), we get a palindrome (59822895).

The spelling of 56702130 in words is "fifty-six million, seven hundred two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 23 30 37 46 69 74 111 115 138 185 222 230 345 370 555 690 851 1110 1702 2221 2553 4255 4442 5106 6663 8510 11105 12765 13326 22210 25530 33315 51083 66630 82177 102166 153249 164354 246531 255415 306498 410885 493062 510830 766245 821770 1232655 1532490 1890071 2465310 3780142 5670213 9450355 11340426 18900710 28351065 56702130