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12437879408 = 241962176581
BaseRepresentation
bin10111001010101101…
…01111101001110000
31012002211001201222022
423211112233221300
5200433044120113
65414110531012
7620136142043
oct134526575160
935084051868
1012437879408
115302949989
1224b1506a68
131232aa9676
1485dc42c5a
154cbe17908
hex2e55afa70

12437879408 has 40 divisors (see below), whose sum is σ = 25374663120. Its totient is φ = 5889784320.

The previous prime is 12437879407. The next prime is 12437879453. The reversal of 12437879408 is 80497873421.

It is a self number, because there is not a number n which added to its sum of digits gives 12437879408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12437879401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1886678 + ... + 1893258.

It is an arithmetic number, because the mean of its divisors is an integer number (634366578).

Almost surely, 212437879408 is an apocalyptic number.

It is an amenable number.

12437879408 is an abundant number, since it is smaller than the sum of its proper divisors (12936783712).

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

12437879408 is a wasteful number, since it uses less digits than its factorization.

12437879408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12825 (or 12819 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 12437879408 in words is "twelve billion, four hundred thirty-seven million, eight hundred seventy-nine thousand, four hundred eight".

Divisors: 1 2 4 8 16 19 38 76 152 304 6217 6581 12434 13162 24868 26324 49736 52648 99472 105296 118123 125039 236246 250078 472492 500156 944984 1000312 1889968 2000624 40914077 81828154 163656308 327312616 654625232 777367463 1554734926 3109469852 6218939704 12437879408