Search a number
-
+
151712939281 is a prime number
BaseRepresentation
bin1000110101001011001…
…0111011110100010001
3112111121010122211211011
42031102302323310101
54441202003024111
6153410154450521
713650405464221
oct2152262736421
9474533584734
10151712939281
1159382aa9852
12254a0433a41
13113ca4093b7
1474b3084081
153e2e18c021
hex2352cbbd11

151712939281 has 2 divisors, whose sum is σ = 151712939282. Its totient is φ = 151712939280.

The previous prime is 151712939269. The next prime is 151712939303. The reversal of 151712939281 is 182939217151.

151712939281 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 can be written as a sum of positive squares in only one way, i.e., 141086628225 + 10626311056 = 375615^2 + 103084^2 .

It is a cyclic number.

It is not a de Polignac number, because 151712939281 - 25 = 151712939249 is a prime.

It is a super-2 number, since 2×1517129392812 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (151712939251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75856469640 + 75856469641.

It is an arithmetic number, because the mean of its divisors is an integer number (75856469641).

Almost surely, 2151712939281 is an apocalyptic number.

It is an amenable number.

151712939281 is a deficient number, since it is larger than the sum of its proper divisors (1).

151712939281 is an equidigital number, since it uses as much as digits as its factorization.

151712939281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 49.

The spelling of 151712939281 in words is "one hundred fifty-one billion, seven hundred twelve million, nine hundred thirty-nine thousand, two hundred eighty-one".