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12269790 = 23251310487
BaseRepresentation
bin101110110011…
…100011011110
3212002100222200
4232303203132
511120113130
61114552330
7206201661
oct56634336
925070880
1012269790
116a20525
1241386a6
132707a40
1418b56d8
151125760
hexbb38de

12269790 has 48 divisors (see below), whose sum is σ = 34358688. Its totient is φ = 3019968.

The previous prime is 12269759. The next prime is 12269791. The reversal of 12269790 is 9796221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12269791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4074 + ... + 6413.

It is an arithmetic number, because the mean of its divisors is an integer number (715806).

Almost surely, 212269790 is an apocalyptic number.

12269790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12269790 is an abundant number, since it is smaller than the sum of its proper divisors (22088898).

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

12269790 is a wasteful number, since it uses less digits than its factorization.

12269790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10513 (or 10510 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 12269790 is about 3502.8260019590. The cubic root of 12269790 is about 230.6458845960.

The spelling of 12269790 in words is "twelve million, two hundred sixty-nine thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 30 39 45 65 78 90 117 130 195 234 390 585 1170 10487 20974 31461 52435 62922 94383 104870 136331 157305 188766 272662 314610 408993 471915 681655 817986 943830 1226979 1363310 2044965 2453958 4089930 6134895 12269790