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10663220854 = 21113231621043
BaseRepresentation
bin10011110111001001…
…11101011001110110
31000112010201202002201
421323210331121312
5133314241031404
64522033455114
7525146611306
oct117344753166
930463652081
1010663220854
114582123720
12209711149a
13100c220050
14732285606
15426217ca4
hex27b93d676

10663220854 has 32 divisors (see below), whose sum is σ = 19608148224. Its totient is φ = 4279550880.

The previous prime is 10663220819. The next prime is 10663220861. The reversal of 10663220854 is 45802236601.

It is a super-2 number, since 2×106632208542 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 803944 + ... + 817099.

It is an arithmetic number, because the mean of its divisors is an integer number (612754632).

Almost surely, 210663220854 is an apocalyptic number.

10663220854 is a deficient number, since it is larger than the sum of its proper divisors (8944927370).

10663220854 is a wasteful number, since it uses less digits than its factorization.

10663220854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621092.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 10663220854 in words is "ten billion, six hundred sixty-three million, two hundred twenty thousand, eight hundred fifty-four".

Divisors: 1 2 11 13 22 23 26 46 143 253 286 299 506 598 3289 6578 1621043 3242086 17831473 21073559 35662946 37283989 42147118 74567978 231809149 410123879 463618298 484691857 820247758 969383714 5331610427 10663220854