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13838859 = 321980929
BaseRepresentation
bin110100110010…
…101000001011
3222001002100100
4310302220023
512020320414
61212340443
7225425346
oct64625013
928032310
1013838859
1178a2381
124774723
132b36c98
141ba345d
151335609
hexd32a0b

13838859 has 12 divisors (see below), whose sum is σ = 21041800. Its totient is φ = 8740224.

The previous prime is 13838843. The next prime is 13838861. The reversal of 13838859 is 95883831.

It is not a de Polignac number, because 13838859 - 24 = 13838843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13838879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40294 + ... + 40635.

Almost surely, 213838859 is an apocalyptic number.

13838859 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

13838859 is a deficient number, since it is larger than the sum of its proper divisors (7202941).

13838859 is a wasteful number, since it uses less digits than its factorization.

13838859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80954 (or 80951 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 13838859 is about 3720.0616930368. The cubic root of 13838859 is about 240.0859587925.

The spelling of 13838859 in words is "thirteen million, eight hundred thirty-eight thousand, eight hundred fifty-nine".

Divisors: 1 3 9 19 57 171 80929 242787 728361 1537651 4612953 13838859