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2115291007 is a prime number
BaseRepresentation
bin111111000010100…
…1100011101111111
312110102021220202101
41332011030131333
513313003303012
6545522005531
7103263451114
oct17605143577
95412256671
102115291007
11996032495
124b04a68a7
13279312aab
14160d0a90b
15c5a87d57
hex7e14c77f

2115291007 has 2 divisors, whose sum is σ = 2115291008. Its totient is φ = 2115291006.

The previous prime is 2115290963. The next prime is 2115291037. The reversal of 2115291007 is 7001925112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2115291007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2115291037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057645503 + 1057645504.

It is an arithmetic number, because the mean of its divisors is an integer number (1057645504).

Almost surely, 22115291007 is an apocalyptic number.

2115291007 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115291007 is an equidigital number, since it uses as much as digits as its factorization.

2115291007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 2115291007 is about 45992.2929087037. The cubic root of 2115291007 is about 1283.6798014258.

The spelling of 2115291007 in words is "two billion, one hundred fifteen million, two hundred ninety-one thousand, seven".