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12438833001 = 377143319267
BaseRepresentation
bin10111001010110100…
…11000011101101001
31012002212212012001120
423211122120131221
5200433320124001
65414143205453
7620150223150
oct134532303551
935085765046
1012438833001
115303440381
1224b18a6889
13123305171a
14860010597
154cc055236
hex2e5698769

12438833001 has 32 divisors (see below), whose sum is σ = 19266766848. Its totient is φ = 6991246080.

The previous prime is 12438832963. The next prime is 12438833023. The reversal of 12438833001 is 10033883421.

It is not a de Polignac number, because 12438833001 - 29 = 12438832489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12438833051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 635970 + ... + 655236.

It is an arithmetic number, because the mean of its divisors is an integer number (602086464).

Almost surely, 212438833001 is an apocalyptic number.

It is an amenable number.

12438833001 is a deficient number, since it is larger than the sum of its proper divisors (6827933847).

12438833001 is a wasteful number, since it uses less digits than its factorization.

12438833001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19781.

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 12438833001 in words is "twelve billion, four hundred thirty-eight million, eight hundred thirty-three thousand, one".

Divisors: 1 3 7 21 71 213 433 497 1299 1491 3031 9093 19267 30743 57801 92229 134869 215201 404607 645603 1367957 4103871 8342611 9575699 25027833 28727097 58398277 175194831 592325381 1776976143 4146277667 12438833001