Search a number
-
+
56710880990 = 25198912726407
BaseRepresentation
bin110100110100001110…
…110101111011011110
312102101021112020200122
4310310032311323132
51412120441142430
642015210554542
74045230351311
oct646416657336
9172337466618
1056710880990
11220618a5295
12aba8438a52
13546a1b771a
142a5db0a978
15171daedee5
hexd343b5ede

56710880990 has 64 divisors (see below), whose sum is σ = 109519257600. Its totient is φ = 21080860416.

The previous prime is 56710880977. The next prime is 56710880999. The reversal of 56710880990 is 9908801765.

It is a super-2 number, since 2×567108809902 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56710880999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2134367 + ... + 2160773.

It is an arithmetic number, because the mean of its divisors is an integer number (1711238400).

Almost surely, 256710880990 is an apocalyptic number.

56710880990 is a deficient number, since it is larger than the sum of its proper divisors (52808376610).

56710880990 is a wasteful number, since it uses less digits than its factorization.

56710880990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26649.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The spelling of 56710880990 in words is "fifty-six billion, seven hundred ten million, eight hundred eighty thousand, nine hundred ninety".

Divisors: 1 2 5 10 19 38 89 95 127 178 190 254 445 635 890 1270 1691 2413 3382 4826 8455 11303 12065 16910 22606 24130 26407 52814 56515 113030 132035 214757 264070 429514 501733 1003466 1073785 2147570 2350223 2508665 3353689 4700446 5017330 6707378 11751115 16768445 23502230 33536890 44654237 63720091 89308474 127440182 223271185 298478321 318600455 446542370 596956642 637200910 1492391605 2984783210 5671088099 11342176198 28355440495 56710880990