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13871273 = 131989631
BaseRepresentation
bin110100111010…
…100010101001
3222002201210212
4310322202221
512022340043
61213150505
7225622013
oct64724251
928081725
1013871273
117914769
12478b435
132b48970
141bb11b3
151340018
hexd3a8a9

13871273 has 16 divisors (see below), whose sum is σ = 15926400. Its totient is φ = 11975040.

The previous prime is 13871233. The next prime is 13871279. The reversal of 13871273 is 37217831.

13871273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13871273 - 222 = 9676969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13871279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21668 + ... + 22298.

It is an arithmetic number, because the mean of its divisors is an integer number (995400).

Almost surely, 213871273 is an apocalyptic number.

13871273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13871273 is a deficient number, since it is larger than the sum of its proper divisors (2055127).

13871273 is a wasteful number, since it uses less digits than its factorization.

13871273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752.

The product of its digits is 7056, while the sum is 32.

The square root of 13871273 is about 3724.4157931144. The cubic root of 13871273 is about 240.2732593560.

The spelling of 13871273 in words is "thirteen million, eight hundred seventy-one thousand, two hundred seventy-three".

Divisors: 1 13 19 89 247 631 1157 1691 8203 11989 21983 56159 155857 730067 1067021 13871273