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56124560 = 2453767283
BaseRepresentation
bin1101011000011…
…0010010010000
310220121102102102
43112012102100
5103331441220
65322535532
71251023312
oct326062220
9126542372
1056124560
1129754238
12169675a8
13b820ccb
14764d7b2
154dd9775
hex3586490

56124560 has 80 divisors (see below), whose sum is σ = 136497216. Its totient is φ = 21441024.

The previous prime is 56124559. The next prime is 56124569. The reversal of 56124560 is 6542165.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56124569) 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, 198179 + ... + 198461.

Almost surely, 256124560 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 56124560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68248608).

56124560 is an abundant number, since it is smaller than the sum of its proper divisors (80372656).

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

56124560 is a wasteful number, since it uses less digits than its factorization.

56124560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 56124560 is about 7491.6326658479. The cubic root of 56124560 is about 382.8696868669.

The spelling of 56124560 in words is "fifty-six million, one hundred twenty-four thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 37 40 67 74 80 134 148 185 268 283 296 335 370 536 566 592 670 740 1072 1132 1340 1415 1480 2264 2479 2680 2830 2960 4528 4958 5360 5660 9916 10471 11320 12395 18961 19832 20942 22640 24790 37922 39664 41884 49580 52355 75844 83768 94805 99160 104710 151688 167536 189610 198320 209420 303376 379220 418840 701557 758440 837680 1403114 1516880 2806228 3507785 5612456 7015570 11224912 14031140 28062280 56124560