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240623081 is a prime number
BaseRepresentation
bin11100101011110…
…01110111101001
3121202202220210222
432111321313221
5443044414311
635513215425
75651156006
oct1625716751
9552686728
10240623081
11113909756
1268701575
133ab0b62a
1423d588ad
15161d0adb
hexe579de9

240623081 has 2 divisors, whose sum is σ = 240623082. Its totient is φ = 240623080.

The previous prime is 240623069. The next prime is 240623153. The reversal of 240623081 is 180326042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 218448400 + 22174681 = 14780^2 + 4709^2 .

It is a cyclic number.

It is not a de Polignac number, because 240623081 - 26 = 240623017 is a prime.

It is a super-2 number, since 2×2406230812 = 115798934219865122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 240623081.

It is not a weakly prime, because it can be changed into another prime (240623041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120311540 + 120311541.

It is an arithmetic number, because the mean of its divisors is an integer number (120311541).

Almost surely, 2240623081 is an apocalyptic number.

It is an amenable number.

240623081 is a deficient number, since it is larger than the sum of its proper divisors (1).

240623081 is an equidigital number, since it uses as much as digits as its factorization.

240623081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 240623081 is about 15512.0302023945. The cubic root of 240623081 is about 621.9838302197.

The spelling of 240623081 in words is "two hundred forty million, six hundred twenty-three thousand, eighty-one".