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12274409 = 77124697
BaseRepresentation
bin101110110100…
…101011101001
3212002121022202
4232310223221
511120240114
61115025545
7206221310
oct56645351
925077282
1012274409
116a23a44
12413b2b5
132709b84
1418b7277
151126cde
hexbb4ae9

12274409 has 8 divisors (see below), whose sum is σ = 14226048. Its totient is φ = 10372320.

The previous prime is 12274397. The next prime is 12274421. The reversal of 12274409 is 90447221.

It is an interprime number because it is at equal distance from previous prime (12274397) and next prime (12274421).

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

It is a de Polignac number, because none of the positive numbers 2k-12274409 is a prime.

It is a super-2 number, since 2×122744092 = 301322232598562, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12274469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11852 + ... + 12845.

It is an arithmetic number, because the mean of its divisors is an integer number (1778256).

Almost surely, 212274409 is an apocalyptic number.

It is an amenable number.

12274409 is a deficient number, since it is larger than the sum of its proper divisors (1951639).

12274409 is an equidigital number, since it uses as much as digits as its factorization.

12274409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24775.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 12274409 is about 3503.4852647043. The cubic root of 12274409 is about 230.6748234147.

The spelling of 12274409 in words is "twelve million, two hundred seventy-four thousand, four hundred nine".

Divisors: 1 7 71 497 24697 172879 1753487 12274409