Search a number
-
+
13875419 is a prime number
BaseRepresentation
bin110100111011…
…100011011011
3222002221111102
4310323203123
512023003134
61213222015
7225640055
oct64734333
928087442
1013875419
117917898
12479190b
132b4a80c
141bb28d5
15134137e
hexd3b8db

13875419 has 2 divisors, whose sum is σ = 13875420. Its totient is φ = 13875418.

The previous prime is 13875403. The next prime is 13875431. The reversal of 13875419 is 91457831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13875419 - 24 = 13875403 is a prime.

It is a super-2 number, since 2×138754192 = 385054504851122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13875469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6937709 + 6937710.

It is an arithmetic number, because the mean of its divisors is an integer number (6937710).

Almost surely, 213875419 is an apocalyptic number.

13875419 is a deficient number, since it is larger than the sum of its proper divisors (1).

13875419 is an equidigital number, since it uses as much as digits as its factorization.

13875419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 38.

The square root of 13875419 is about 3724.9723488907. The cubic root of 13875419 is about 240.2971954840.

It can be divided in two parts, 138 and 75419, that added together give a palindrome (75557).

The spelling of 13875419 in words is "thirteen million, eight hundred seventy-five thousand, four hundred nineteen".