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10166831388 = 22327233317293
BaseRepresentation
bin10010111011111110…
…11000100100011100
3222020112200112202200
421131333120210130
5131310202101023
64400502251500
7506641432560
oct113577304434
928215615680
1010166831388
114347a0299a
121b78a26b90
13c6043047c
146c638d6a0
153e7864743
hex25dfd891c

10166831388 has 72 divisors (see below), whose sum is σ = 29385134688. Its totient is φ = 2903395968.

The previous prime is 10166831383. The next prime is 10166831407. The reversal of 10166831388 is 88313866101.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10166831383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 579270 + ... + 596562.

Almost surely, 210166831388 is an apocalyptic number.

10166831388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

10166831388 is an abundant number, since it is smaller than the sum of its proper divisors (19218303300).

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

10166831388 is a wasteful number, since it uses less digits than its factorization.

10166831388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19643 (or 19638 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 10166831388 in words is "ten billion, one hundred sixty-six million, eight hundred thirty-one thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 2333 4666 6999 9332 13998 16331 17293 20997 27996 32662 34586 41994 48993 51879 65324 69172 83988 97986 103758 121051 146979 155637 195972 207516 242102 293958 311274 363153 484204 587916 622548 726306 1089459 1452612 2178918 4357836 40344569 80689138 121033707 161378276 242067414 282411983 363101121 484134828 564823966 726202242 847235949 1129647932 1452404484 1694471898 2541707847 3388943796 5083415694 10166831388