Search a number
-
+
31052666377 is a prime number
BaseRepresentation
bin11100111010111000…
…100001011000001001
32222011010001220011201
4130322320201120021
51002043440311002
622133154224201
72146341211015
oct347270413011
988133056151
1031052666377
1112195469947
126027585061
132c0b4b2205
141708185545
15c1b260087
hex73ae21609

31052666377 has 2 divisors, whose sum is σ = 31052666378. Its totient is φ = 31052666376.

The previous prime is 31052666353. The next prime is 31052666399. The reversal of 31052666377 is 77366625013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18622423296 + 12430243081 = 136464^2 + 111491^2 .

It is a cyclic number.

It is not a de Polignac number, because 31052666377 - 211 = 31052664329 is a prime.

It is a super-2 number, since 2×310526663772 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31052666077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15526333188 + 15526333189.

It is an arithmetic number, because the mean of its divisors is an integer number (15526333189).

Almost surely, 231052666377 is an apocalyptic number.

It is an amenable number.

31052666377 is a deficient number, since it is larger than the sum of its proper divisors (1).

31052666377 is an equidigital number, since it uses as much as digits as its factorization.

31052666377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 46.

The spelling of 31052666377 in words is "thirty-one billion, fifty-two million, six hundred sixty-six thousand, three hundred seventy-seven".