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12397488 = 2431715193
BaseRepresentation
bin101111010010…
…101110110000
3212022212011020
4233102232300
511133204423
61121415440
7210243165
oct57225660
925285136
1012397488
116aa8464
12419a580
132750bbc
14190a06c
15114d4e3
hexbd2bb0

12397488 has 40 divisors (see below), whose sum is σ = 33913008. Its totient is φ = 3889152.

The previous prime is 12397487. The next prime is 12397499. The reversal of 12397488 is 88479321.

It is not an unprimeable number, because it can be changed into a prime (12397487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6781 + ... + 8412.

Almost surely, 212397488 is an apocalyptic number.

It is an amenable number.

12397488 is an abundant number, since it is smaller than the sum of its proper divisors (21515520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12397488 is a wasteful number, since it uses less digits than its factorization.

12397488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15221 (or 15215 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 12397488 is about 3521.0066742339. The cubic root of 12397488 is about 231.4432746989.

It can be divided in two parts, 12 and 397488, that multiplied together give a square (4769856 = 21842).

The spelling of 12397488 in words is "twelve million, three hundred ninety-seven thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 136 204 272 408 816 15193 30386 45579 60772 91158 121544 182316 243088 258281 364632 516562 729264 774843 1033124 1549686 2066248 3099372 4132496 6198744 12397488