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213002291 is a prime number
BaseRepresentation
bin11001011001000…
…10100000110011
3112211210122012202
430230202200303
5414012033131
633045213415
75164326635
oct1454424063
9484718182
10213002291
11aa263857
125b40126b
133518a578
1420408a55
1513a76bcb
hexcb22833

213002291 has 2 divisors, whose sum is σ = 213002292. Its totient is φ = 213002290.

The previous prime is 213002281. The next prime is 213002311. The reversal of 213002291 is 192200312.

It is an a-pointer prime, because the next prime (213002311) can be obtained adding 213002291 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213002291 - 218 = 212740147 is a prime.

It is not a weakly prime, because it can be changed into another prime (213002221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106501145 + 106501146.

It is an arithmetic number, because the mean of its divisors is an integer number (106501146).

Almost surely, 2213002291 is an apocalyptic number.

213002291 is a deficient number, since it is larger than the sum of its proper divisors (1).

213002291 is an equidigital number, since it uses as much as digits as its factorization.

213002291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 213002291 is about 14594.5980074821. The cubic root of 213002291 is about 597.2114031431.

The spelling of 213002291 in words is "two hundred thirteen million, two thousand, two hundred ninety-one".