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194431314013 is a prime number
BaseRepresentation
bin1011010100010100000…
…0100110100001011101
3200120212020211010102021
42311011000212201131
511141143404022023
6225153121500141
720022121620616
oct2650500464135
9616766733367
10194431314013
1175504453a82
12318227a1651
1315447709b01
1495a66a8c0d
1550ce63835d
hex2d4502685d

194431314013 has 2 divisors, whose sum is σ = 194431314014. Its totient is φ = 194431314012.

The previous prime is 194431313963. The next prime is 194431314017. The reversal of 194431314013 is 310413134491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188388117369 + 6043196644 = 434037^2 + 77738^2 .

It is an emirp because it is prime and its reverse (310413134491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194431314013 - 213 = 194431305821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 194431314013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194431314017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97215657006 + 97215657007.

It is an arithmetic number, because the mean of its divisors is an integer number (97215657007).

Almost surely, 2194431314013 is an apocalyptic number.

It is an amenable number.

194431314013 is a deficient number, since it is larger than the sum of its proper divisors (1).

194431314013 is an equidigital number, since it uses as much as digits as its factorization.

194431314013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 194431314013 in words is "one hundred ninety-four billion, four hundred thirty-one million, three hundred fourteen thousand, thirteen".