Search a number
-
+
15470144293 is a prime number
BaseRepresentation
bin11100110100001011…
…11010101100100101
31110221010210202102011
432122011322230211
5223140324104133
611035030514221
71055236025332
oct163205725445
943833722364
1015470144293
11661954741a
122bb8b05971
1315c7079a46
14a6a847989
156082316cd
hex39a17ab25

15470144293 has 2 divisors, whose sum is σ = 15470144294. Its totient is φ = 15470144292.

The previous prime is 15470144267. The next prime is 15470144309. The reversal of 15470144293 is 39244107451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15326935204 + 143209089 = 123802^2 + 11967^2 .

It is an emirp because it is prime and its reverse (39244107451) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15470144293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15470148293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7735072146 + 7735072147.

It is an arithmetic number, because the mean of its divisors is an integer number (7735072147).

Almost surely, 215470144293 is an apocalyptic number.

It is an amenable number.

15470144293 is a deficient number, since it is larger than the sum of its proper divisors (1).

15470144293 is an equidigital number, since it uses as much as digits as its factorization.

15470144293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 15470144293 in words is "fifteen billion, four hundred seventy million, one hundred forty-four thousand, two hundred ninety-three".