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12302897 = 45726921
BaseRepresentation
bin101110111011…
…101000110001
3212011001101212
4232323220301
511122143042
61115405505
7206400335
oct56735061
925131355
1012302897
116a43392
124153895
132719b29
1418c37c5
151130482
hexbbba31

12302897 has 4 divisors (see below), whose sum is σ = 12330276. Its totient is φ = 12275520.

The previous prime is 12302893. The next prime is 12302921. The reversal of 12302897 is 79820321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11723776 + 579121 = 3424^2 + 761^2 .

It is a cyclic number.

It is not a de Polignac number, because 12302897 - 22 = 12302893 is a prime.

It is a super-2 number, since 2×123028972 = 302722549185218, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (12302891) 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, 13004 + ... + 13917.

It is an arithmetic number, because the mean of its divisors is an integer number (3082569).

Almost surely, 212302897 is an apocalyptic number.

It is an amenable number.

12302897 is a deficient number, since it is larger than the sum of its proper divisors (27379).

12302897 is an equidigital number, since it uses as much as digits as its factorization.

12302897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27378.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 12302897 is about 3507.5485741469. The cubic root of 12302897 is about 230.8531452916.

The spelling of 12302897 in words is "twelve million, three hundred two thousand, eight hundred ninety-seven".

Divisors: 1 457 26921 12302897