Search a number
-
+
15214469 is a prime number
BaseRepresentation
bin111010000010…
…011110000101
31001121222022212
4322002132011
512343330334
61302033205
7243215024
oct72023605
931558285
1015214469
118651946
125118805
1331c915a
1420408bb
151507ece
hexe82785

15214469 has 2 divisors, whose sum is σ = 15214470. Its totient is φ = 15214468.

The previous prime is 15214457. The next prime is 15214483. The reversal of 15214469 is 96441251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15132100 + 82369 = 3890^2 + 287^2 .

It is an emirp because it is prime and its reverse (96441251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15214469 - 212 = 15210373 is a prime.

It is a super-2 number, since 2×152144692 = 462960133903922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15214489) 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 as a sum of consecutive naturals, namely, 7607234 + 7607235.

It is an arithmetic number, because the mean of its divisors is an integer number (7607235).

Almost surely, 215214469 is an apocalyptic number.

It is an amenable number.

15214469 is a deficient number, since it is larger than the sum of its proper divisors (1).

15214469 is an equidigital number, since it uses as much as digits as its factorization.

15214469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 15214469 is about 3900.5729066382. The cubic root of 15214469 is about 247.7910408166.

The spelling of 15214469 in words is "fifteen million, two hundred fourteen thousand, four hundred sixty-nine".