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10261166420 = 225869958979
BaseRepresentation
bin10011000111001110…
…01111100101010100
3222111010012021002202
421203213033211110
5132003324311140
64414112224032
7512165322041
oct114347174524
928433167082
1010261166420
11439618522a
121ba453b018
13c76b3c60b
146d4b081c8
15400c9a915
hex2639cf954

10261166420 has 24 divisors (see below), whose sum is σ = 21551292000. Its totient is φ = 4103925152.

The previous prime is 10261166417. The next prime is 10261166491. The reversal of 10261166420 is 2466116201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144491 + ... + 203469.

It is an arithmetic number, because the mean of its divisors is an integer number (897970500).

Almost surely, 210261166420 is an apocalyptic number.

10261166420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10261166420 is an abundant number, since it is smaller than the sum of its proper divisors (11290125580).

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

10261166420 is a wasteful number, since it uses less digits than its factorization.

10261166420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67687 (or 67685 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 10261166420 in words is "ten billion, two hundred sixty-one million, one hundred sixty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 8699 17398 34796 43495 58979 86990 117958 173980 235916 294895 589790 1179580 513058321 1026116642 2052233284 2565291605 5130583210 10261166420