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2116105429 is a prime number
BaseRepresentation
bin111111000100001…
…0011010011010101
312110110211021221011
41332020103103111
513313210333204
6545551252221
7103303412404
oct17610232325
95413737834
102116105429
11996539369
124b081a071
132795396b9
1416107d63b
15c5b99304
hex7e2134d5

2116105429 has 2 divisors, whose sum is σ = 2116105430. Its totient is φ = 2116105428.

The previous prime is 2116105427. The next prime is 2116105451. The reversal of 2116105429 is 9245016112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2083922500 + 32182929 = 45650^2 + 5673^2 .

It is a cyclic number.

It is not a de Polignac number, because 2116105429 - 21 = 2116105427 is a prime.

Together with 2116105427, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2116105429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2116105423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058052714 + 1058052715.

It is an arithmetic number, because the mean of its divisors is an integer number (1058052715).

Almost surely, 22116105429 is an apocalyptic number.

It is an amenable number.

2116105429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116105429 is an equidigital number, since it uses as much as digits as its factorization.

2116105429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 2116105429 is about 46001.1459531173. The cubic root of 2116105429 is about 1283.8445262672.

The spelling of 2116105429 in words is "two billion, one hundred sixteen million, one hundred five thousand, four hundred twenty-nine".