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12290299 = 71755757
BaseRepresentation
bin101110111000…
…100011111011
3212010102010021
4232320203323
511121242144
61115231311
7206315530
oct56704373
925112107
1012290299
116a3497a
124148537
132714188
1418bcd87
15112b884
hexbb88fb

12290299 has 4 divisors (see below), whose sum is σ = 14046064. Its totient is φ = 10534536.

The previous prime is 12290297. The next prime is 12290323. The reversal of 12290299 is 99209221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12290299 - 21 = 12290297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12290297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877872 + ... + 877885.

It is an arithmetic number, because the mean of its divisors is an integer number (3511516).

Almost surely, 212290299 is an apocalyptic number.

12290299 is a deficient number, since it is larger than the sum of its proper divisors (1755765).

12290299 is an equidigital number, since it uses as much as digits as its factorization.

12290299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755764.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 12290299 is about 3505.7522730507. The cubic root of 12290299 is about 230.7743215487.

The spelling of 12290299 in words is "twelve million, two hundred ninety thousand, two hundred ninety-nine".

Divisors: 1 7 1755757 12290299