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12472901872 = 243721069091
BaseRepresentation
bin10111001110111000…
…10110000011110000
31012012020222001202121
423213130112003300
5201021030324442
65421401324024
7621042626254
oct134734260360
935166861677
1012472901872
11532069a872
122501196614
13123a11c712
1486475c264
154d0034967
hex2e77160f0

12472901872 has 20 divisors (see below), whose sum is σ = 24819390376. Its totient is φ = 6067897920.

The previous prime is 12472901839. The next prime is 12472901893. The reversal of 12472901872 is 27810927421.

12472901872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×124729018722 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 10533954 + ... + 10535137.

Almost surely, 212472901872 is an apocalyptic number.

It is an amenable number.

12472901872 is a deficient number, since it is larger than the sum of its proper divisors (12346488504).

12472901872 is a wasteful number, since it uses less digits than its factorization.

12472901872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21069136 (or 21069130 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 12472901872 in words is "twelve billion, four hundred seventy-two million, nine hundred one thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 16 37 74 148 296 592 21069091 42138182 84276364 168552728 337105456 779556367 1559112734 3118225468 6236450936 12472901872