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10669988620 = 2255328335569
BaseRepresentation
bin10011110111111101…
…10001101100001100
31000112121110120201201
421323332301230030
5133323004113440
64522434515244
7525261256354
oct117376615414
930477416651
1010669988620
114585a26415
122099435b24
13101074c645
14733127b64
15426b0319a
hex27bfb1b0c

10669988620 has 48 divisors (see below), whose sum is σ = 22911063840. Its totient is φ = 4172553216.

The previous prime is 10669988599. The next prime is 10669988621. The reversal of 10669988620 is 2688996601.

It is a super-2 number, since 2×106699886202 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10669988621) 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, 282196 + ... + 317764.

It is an arithmetic number, because the mean of its divisors is an integer number (477313830).

Almost surely, 210669988620 is an apocalyptic number.

10669988620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10669988620 is an abundant number, since it is smaller than the sum of its proper divisors (12241075220).

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

10669988620 is a wasteful number, since it uses less digits than its factorization.

10669988620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35914 (or 35912 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 10669988620 in words is "ten billion, six hundred sixty-nine million, nine hundred eighty-eight thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 283 530 566 1060 1132 1415 2830 5660 14999 29998 35569 59996 71138 74995 142276 149990 177845 299980 355690 711380 1885157 3770314 7540628 9425785 10066027 18851570 20132054 37703140 40264108 50330135 100660270 201320540 533499431 1066998862 2133997724 2667497155 5334994310 10669988620