Search a number
-
+
15240851 is a prime number
BaseRepresentation
bin111010001000…
…111010010011
31001200022111222
4322020322103
512400201401
61302355255
7243354653
oct72107223
931608458
1015240851
11866a74a
12512bb2b
133208172
14204a363
151510c1b
hexe88e93

15240851 has 2 divisors, whose sum is σ = 15240852. Its totient is φ = 15240850.

The previous prime is 15240833. The next prime is 15240859. The reversal of 15240851 is 15804251.

15240851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15240851 - 26 = 15240787 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15240851.

It is not a weakly prime, because it can be changed into another prime (15240859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7620425 + 7620426.

It is an arithmetic number, because the mean of its divisors is an integer number (7620426).

Almost surely, 215240851 is an apocalyptic number.

15240851 is a deficient number, since it is larger than the sum of its proper divisors (1).

15240851 is an equidigital number, since it uses as much as digits as its factorization.

15240851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 15240851 is about 3903.9532527939. The cubic root of 15240851 is about 247.9341819354.

The spelling of 15240851 in words is "fifteen million, two hundred forty thousand, eight hundred fifty-one".