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12491102 = 213480427
BaseRepresentation
bin101111101001…
…100101011110
3212111121120102
4233221211132
511144203402
61123421102
7211113131
oct57514536
925447512
1012491102
117061828
124224792
1327846b0
141932218
15116b102
hexbe995e

12491102 has 8 divisors (see below), whose sum is σ = 20177976. Its totient is φ = 5765112.

The previous prime is 12491071. The next prime is 12491131. The reversal of 12491102 is 20119421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240188 + ... + 240239.

It is an arithmetic number, because the mean of its divisors is an integer number (2522247).

Almost surely, 212491102 is an apocalyptic number.

12491102 is a deficient number, since it is larger than the sum of its proper divisors (7686874).

12491102 is a wasteful number, since it uses less digits than its factorization.

12491102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480442.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 12491102 is about 3534.2753146862. The cubic root of 12491102 is about 232.0243607991.

The spelling of 12491102 in words is "twelve million, four hundred ninety-one thousand, one hundred two".

Divisors: 1 2 13 26 480427 960854 6245551 12491102