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12258797 = 49124967
BaseRepresentation
bin101110110000…
…110111101101
3212001210220112
4232300313231
511114240142
61114425405
7206124635
oct56606755
925053815
1012258797
116a13241
124132265
132702a35
1418b16c5
151122382
hexbb0ded

12258797 has 4 divisors (see below), whose sum is σ = 12284256. Its totient is φ = 12233340.

The previous prime is 12258791. The next prime is 12258809. The reversal of 12258797 is 79785221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79785221 = 411945981.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12258797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12258791) 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, 11993 + ... + 12974.

It is an arithmetic number, because the mean of its divisors is an integer number (3071064).

Almost surely, 212258797 is an apocalyptic number.

It is an amenable number.

12258797 is a deficient number, since it is larger than the sum of its proper divisors (25459).

12258797 is an equidigital number, since it uses as much as digits as its factorization.

12258797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25458.

The product of its digits is 70560, while the sum is 41.

The square root of 12258797 is about 3501.2564887480. The cubic root of 12258797 is about 230.5769823626.

The spelling of 12258797 in words is "twelve million, two hundred fifty-eight thousand, seven hundred ninety-seven".

Divisors: 1 491 24967 12258797