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23861080681 is a prime number
BaseRepresentation
bin10110001110001110…
…110011001001101001
32021120220211111012221
4112032032303021221
5342331414040211
614543413434041
71503204560614
oct261616631151
967526744187
1023861080681
11a134a5a099
12475b03b921
1323335a9b69
141224dd717b
15949beec71
hex58e3b3269

23861080681 has 2 divisors, whose sum is σ = 23861080682. Its totient is φ = 23861080680.

The previous prime is 23861080637. The next prime is 23861080699. The reversal of 23861080681 is 18608016832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20891811600 + 2969269081 = 144540^2 + 54491^2 .

It is a cyclic number.

It is not a de Polignac number, because 23861080681 - 213 = 23861072489 is a prime.

It is a super-2 number, since 2×238610806812 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23861080181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11930540340 + 11930540341.

It is an arithmetic number, because the mean of its divisors is an integer number (11930540341).

Almost surely, 223861080681 is an apocalyptic number.

It is an amenable number.

23861080681 is a deficient number, since it is larger than the sum of its proper divisors (1).

23861080681 is an equidigital number, since it uses as much as digits as its factorization.

23861080681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 23861080681 in words is "twenty-three billion, eight hundred sixty-one million, eighty thousand, six hundred eighty-one".