Search a number
-
+
31232102219 is a prime number
BaseRepresentation
bin11101000101100101…
…000000111101001011
32222121121201011212122
4131011211000331023
51002430404232334
622203044201455
72153650326413
oct350545007513
988547634778
1031232102219
111227778672a
12607769928b
132c39719376
141723d33643
15c2bda632e
hex745940f4b

31232102219 has 2 divisors, whose sum is σ = 31232102220. Its totient is φ = 31232102218.

The previous prime is 31232102203. The next prime is 31232102249. The reversal of 31232102219 is 91220123213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31232102219 - 24 = 31232102203 is a prime.

It is a super-2 number, since 2×312321022192 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31232102249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15616051109 + 15616051110.

It is an arithmetic number, because the mean of its divisors is an integer number (15616051110).

Almost surely, 231232102219 is an apocalyptic number.

31232102219 is a deficient number, since it is larger than the sum of its proper divisors (1).

31232102219 is an equidigital number, since it uses as much as digits as its factorization.

31232102219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 31232102219 in words is "thirty-one billion, two hundred thirty-two million, one hundred two thousand, two hundred nineteen".