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56131460 = 225721141127
BaseRepresentation
bin1101011000011…
…1111110000100
310220121202212222
43112013332010
5103332201320
65323031512
71251052400
oct326077604
9126552788
1056131460
1129759440
121696b598
13b8241a8
147652100
154ddb825
hex3587f84

56131460 has 144 divisors (see below), whose sum is σ = 154441728. Its totient is φ = 16934400.

The previous prime is 56131447. The next prime is 56131463. The reversal of 56131460 is 6413165.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (56131463) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 441917 + ... + 442043.

It is an arithmetic number, because the mean of its divisors is an integer number (1072512).

Almost surely, 256131460 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 56131460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77220864).

56131460 is an abundant number, since it is smaller than the sum of its proper divisors (98310268).

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

56131460 is a wasteful number, since it uses less digits than its factorization.

56131460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 56131460 is about 7492.0931654645. The cubic root of 56131460 is about 382.8853763297.

The spelling of 56131460 in words is "fifty-six million, one hundred thirty-one thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 41 44 49 55 70 77 82 98 110 127 140 154 164 196 205 220 245 254 287 308 385 410 451 490 508 539 574 635 770 820 889 902 980 1078 1148 1270 1397 1435 1540 1778 1804 2009 2156 2255 2540 2695 2794 2870 3157 3556 4018 4445 4510 5207 5390 5588 5740 6223 6314 6985 8036 8890 9020 9779 10045 10414 10780 12446 12628 13970 15785 17780 19558 20090 20828 22099 24892 26035 27940 31115 31570 36449 39116 40180 44198 48895 52070 57277 62230 63140 68453 72898 88396 97790 104140 110495 114554 124460 136906 145796 182245 195580 220990 229108 255143 273812 286385 342265 364490 400939 441980 510286 572770 684530 728980 801878 1020572 1145540 1275715 1369060 1603756 2004695 2551430 2806573 4009390 5102860 5613146 8018780 11226292 14032865 28065730 56131460