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56097080 = 23513233463
BaseRepresentation
bin1101010111111…
…1100100111000
310220120000201122
43111333210320
5103330101310
65322204412
71250550224
oct325774470
9126500648
1056097080
1129735626
1216953708
13b811650
147643784
154dd1555
hex357f938

56097080 has 64 divisors (see below), whose sum is σ = 136805760. Its totient is φ = 20579328.

The previous prime is 56097079. The next prime is 56097089. The reversal of 56097080 is 8079065.

It is a self number, because there is not a number n which added to its sum of digits gives 56097080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56097089) 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, 120929 + ... + 121391.

It is an arithmetic number, because the mean of its divisors is an integer number (2137590).

Almost surely, 256097080 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 56097080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68402880).

56097080 is an abundant number, since it is smaller than the sum of its proper divisors (80708680).

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

56097080 is a wasteful number, since it uses less digits than its factorization.

56097080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 716 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 56097080 is about 7489.7983951506. The cubic root of 56097080 is about 382.8071891142.

The spelling of 56097080 in words is "fifty-six million, ninety-seven thousand, eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 233 260 463 466 520 926 932 1165 1852 1864 2315 2330 3029 3704 4630 4660 6019 6058 9260 9320 12038 12116 15145 18520 24076 24232 30095 30290 48152 60190 60580 107879 120380 121160 215758 240760 431516 539395 863032 1078790 1402427 2157580 2804854 4315160 5609708 7012135 11219416 14024270 28048540 56097080