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12297479236 = 2272894
BaseRepresentation
bin10110111001111110…
…01010010001000100
31011202000212200010221
423130333022101010
5200141123313421
65352133354124
7613512564100
oct133477122104
934660780127
1012297479236
115240674189
122472498944
13120c98c143
14849336900
154be932841
hex2dcfca444

12297479236 has 45 divisors (see below), whose sum is σ = 25318633179. Its totient is φ = 5211130848.

The previous prime is 12297479213. The next prime is 12297479263. The reversal of 12297479236 is 63297479221.

The square root of 12297479236 is 110894.

It is a perfect power (a square), and thus also a powerful number.

12297479236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4665709636 + 7631769600 = 68306^2 + 87360^2 .

It is a super-2 number, since 2×122974792362 (a number of 21 digits) contains 22 as substring.

Its product of digits (2286144) is a multiple of the sum of its prime divisors (98).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 138173880 + ... + 138173968.

Almost surely, 212297479236 is an apocalyptic number.

12297479236 is the 110894-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12297479236

12297479236 is an abundant number, since it is smaller than the sum of its proper divisors (13021153943).

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

12297479236 is an frugal number, since it uses more digits than its factorization.

12297479236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 98 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 52.

The spelling of 12297479236 in words is "twelve billion, two hundred ninety-seven million, four hundred seventy-nine thousand, two hundred thirty-six".

Divisors: 1 2 4 7 14 28 49 89 98 178 196 356 623 1246 2492 4361 7921 8722 15842 17444 31684 55447 110894 221788 388129 704969 776258 1409938 1552516 2819876 4934783 9869566 19739132 34543481 62742241 69086962 125484482 138173924 250968964 439195687 878391374 1756782748 3074369809 6148739618 12297479236