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13838148569 = 75933506413
BaseRepresentation
bin11001110001101000…
…10110001111011001
31022201101220210011002
430320310112033121
5211320031223234
610205051314345
7666631215320
oct147064261731
938641823132
1013838148569
115961301923
12282244b9b5
1313c6c207bb
14953bc50b7
1555ed1227e
hex338d163d9

13838148569 has 8 divisors (see below), whose sum is σ = 16083078720. Its totient is φ = 11660231376.

The previous prime is 13838148553. The next prime is 13838148581. The reversal of 13838148569 is 96584183831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13838148569 - 24 = 13838148553 is a prime.

It is a super-2 number, since 2×138381485692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13838148509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16752794 + ... + 16753619.

It is an arithmetic number, because the mean of its divisors is an integer number (2010384840).

Almost surely, 213838148569 is an apocalyptic number.

It is an amenable number.

13838148569 is a deficient number, since it is larger than the sum of its proper divisors (2244930151).

13838148569 is an equidigital number, since it uses as much as digits as its factorization.

13838148569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33506479.

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

The spelling of 13838148569 in words is "thirteen billion, eight hundred thirty-eight million, one hundred forty-eight thousand, five hundred sixty-nine".

Divisors: 1 7 59 413 33506413 234544891 1976878367 13838148569