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12408984956 = 2271131333539
BaseRepresentation
bin10111000111010001…
…00001010101111100
31012000210200202020102
423203220201111330
5200403200004311
65411155340232
7616335426464
oct134350412574
935023622212
1012408984956
115298604075
1224a38b1678
131229b00964
1485a080ba4
154c960b43b
hex2e3a2157c

12408984956 has 24 divisors (see below), whose sum is σ = 22189749120. Its totient is φ = 6070391600.

The previous prime is 12408984953. The next prime is 12408984983. The reversal of 12408984956 is 65948980421.

12408984956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12408984953) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 129566 + ... + 203973.

It is an arithmetic number, because the mean of its divisors is an integer number (924572880).

Almost surely, 212408984956 is an apocalyptic number.

It is an amenable number.

12408984956 is a deficient number, since it is larger than the sum of its proper divisors (9780764164).

12408984956 is a wasteful number, since it uses less digits than its factorization.

12408984956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333745 (or 333743 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 56.

The spelling of 12408984956 in words is "twelve billion, four hundred eight million, nine hundred eighty-four thousand, nine hundred fifty-six".

Divisors: 1 2 4 71 131 142 262 284 524 9301 18602 37204 333539 667078 1334156 23681269 43693609 47362538 87387218 94725076 174774436 3102246239 6204492478 12408984956