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97297297 = 193150387
BaseRepresentation
bin1011100110010…
…10001110010001
320210002012210121
411303022032101
5144402003142
613353230241
72261004406
oct563121621
9223065717
1097297297
114aa15999
1228702381
1317208586
14ccca2ad
15881dc67
hex5cca391

97297297 has 4 divisors (see below), whose sum is σ = 97349616. Its totient is φ = 97244980.

The previous prime is 97297289. The next prime is 97297301. The reversal of 97297297 is 79279279.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97297297 - 23 = 97297289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97297397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23263 + ... + 27124.

It is an arithmetic number, because the mean of its divisors is an integer number (24337404).

Almost surely, 297297297 is an apocalyptic number.

It is an amenable number.

97297297 is a deficient number, since it is larger than the sum of its proper divisors (52319).

97297297 is a wasteful number, since it uses less digits than its factorization.

97297297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52318.

The product of its digits is 1000188, while the sum is 52.

The square root of 97297297 is about 9863.9392232515. The cubic root of 97297297 is about 459.9390231083.

The spelling of 97297297 in words is "ninety-seven million, two hundred ninety-seven thousand, two hundred ninety-seven".

Divisors: 1 1931 50387 97297297