Search a number
-
+
13870459 is a prime number
BaseRepresentation
bin110100111010…
…010101111011
3222002200200201
4310322111323
512022323314
61213143031
7225616441
oct64722573
928080621
1013870459
117914099
12478aa77
132b48495
141bb0b91
15133eb74
hexd3a57b

13870459 has 2 divisors, whose sum is σ = 13870460. Its totient is φ = 13870458.

The previous prime is 13870457. The next prime is 13870463. The reversal of 13870459 is 95407831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13870459 - 21 = 13870457 is a prime.

Together with 13870457, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13870457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6935229 + 6935230.

It is an arithmetic number, because the mean of its divisors is an integer number (6935230).

Almost surely, 213870459 is an apocalyptic number.

13870459 is a deficient number, since it is larger than the sum of its proper divisors (1).

13870459 is an equidigital number, since it uses as much as digits as its factorization.

13870459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 13870459 is about 3724.3065126276. The cubic root of 13870459 is about 240.2685593245.

The spelling of 13870459 in words is "thirteen million, eight hundred seventy thousand, four hundred fifty-nine".