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15214939 is a prime number
BaseRepresentation
bin111010000010…
…100101011011
31001121222222021
4322002211123
512343334224
61302035311
7243216265
oct72024533
931558867
1015214939
118652233
125118b37
1331c942c
142040b35
1515081e4
hexe8295b

15214939 has 2 divisors, whose sum is σ = 15214940. Its totient is φ = 15214938.

The previous prime is 15214933. The next prime is 15214951. The reversal of 15214939 is 93941251.

15214939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15214939 - 23 = 15214931 is a prime.

It is not a weakly prime, because it can be changed into another prime (15214931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7607469 + 7607470.

It is an arithmetic number, because the mean of its divisors is an integer number (7607470).

Almost surely, 215214939 is an apocalyptic number.

15214939 is a deficient number, since it is larger than the sum of its proper divisors (1).

15214939 is an equidigital number, since it uses as much as digits as its factorization.

15214939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 34.

The square root of 15214939 is about 3900.6331537329. The cubic root of 15214939 is about 247.7935923481.

The spelling of 15214939 in words is "fifteen million, two hundred fourteen thousand, nine hundred thirty-nine".