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23897860297 is a prime number
BaseRepresentation
bin10110010000011011…
…000110100011001001
32021200111001002100221
4112100123012203021
5342420323012142
614551210030041
71504132314043
oct262033064311
967614032327
1023897860297
11a1537a0173
12476b418321
13233b0b694c
141229c4ca93
1594d067767
hex5906c68c9

23897860297 has 2 divisors, whose sum is σ = 23897860298. Its totient is φ = 23897860296.

The previous prime is 23897860247. The next prime is 23897860373. The reversal of 23897860297 is 79206879832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18017424441 + 5880435856 = 134229^2 + 76684^2 .

It is a cyclic number.

It is not a de Polignac number, because 23897860297 - 27 = 23897860169 is a prime.

It is a super-2 number, since 2×238978602972 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23897860247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11948930148 + 11948930149.

It is an arithmetic number, because the mean of its divisors is an integer number (11948930149).

Almost surely, 223897860297 is an apocalyptic number.

It is an amenable number.

23897860297 is a deficient number, since it is larger than the sum of its proper divisors (1).

23897860297 is an equidigital number, since it uses as much as digits as its factorization.

23897860297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 23897860297 in words is "twenty-three billion, eight hundred ninety-seven million, eight hundred sixty thousand, two hundred ninety-seven".