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23240254931 is a prime number
BaseRepresentation
bin10101101001001110…
…100010010111010011
32012222122122021101122
4111221032202113103
5340044001124211
614402035152455
71451625623165
oct255116422723
965878567348
1023240254931
119946577563
12460714572b
132264a9c04a
1411a678c935
1591046b6db
hex5693a25d3

23240254931 has 2 divisors, whose sum is σ = 23240254932. Its totient is φ = 23240254930.

The previous prime is 23240254897. The next prime is 23240254979. The reversal of 23240254931 is 13945204232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23240254931 - 26 = 23240254867 is a prime.

It is a super-2 number, since 2×232402549312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23240254891 and 23240254900.

It is not a weakly prime, because it can be changed into another prime (23240254831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11620127465 + 11620127466.

It is an arithmetic number, because the mean of its divisors is an integer number (11620127466).

Almost surely, 223240254931 is an apocalyptic number.

23240254931 is a deficient number, since it is larger than the sum of its proper divisors (1).

23240254931 is an equidigital number, since it uses as much as digits as its factorization.

23240254931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 23240254931 in words is "twenty-three billion, two hundred forty million, two hundred fifty-four thousand, nine hundred thirty-one".