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23747873 is a prime number
BaseRepresentation
bin101101010010…
…1110100100001
31122200111221212
41122211310201
522034412443
62204555505
7405565532
oct132456441
948614855
1023747873
1112450146
127b52b95
134bc62c6
143222689
152141618
hex16a5d21

23747873 has 2 divisors, whose sum is σ = 23747874. Its totient is φ = 23747872.

The previous prime is 23747837. The next prime is 23747881. The reversal of 23747873 is 37874732.

Together with previous prime (23747837) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22733824 + 1014049 = 4768^2 + 1007^2 .

It is a cyclic number.

It is not a de Polignac number, because 23747873 - 212 = 23743777 is a prime.

It is a super-2 number, since 2×237478732 = 1127922944048258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23747873.

It is not a weakly prime, because it can be changed into another prime (23747803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11873936 + 11873937.

It is an arithmetic number, because the mean of its divisors is an integer number (11873937).

Almost surely, 223747873 is an apocalyptic number.

It is an amenable number.

23747873 is a deficient number, since it is larger than the sum of its proper divisors (1).

23747873 is an equidigital number, since it uses as much as digits as its factorization.

23747873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 41.

The square root of 23747873 is about 4873.1789419228. The cubic root of 23747873 is about 287.4362727057.

The spelling of 23747873 in words is "twenty-three million, seven hundred forty-seven thousand, eight hundred seventy-three".