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2393023231 = 7681311551
BaseRepresentation
bin1000111010100010…
…1010001011111111
320011202220011202001
42032220222023333
514400103220411
61033242443131
7113205235054
oct21650521377
96152804661
102393023231
111018887855
125695034a7
132c1a151a1
14189b6502b
15e0148dc1
hex8ea2a2ff

2393023231 has 4 divisors (see below), whose sum is σ = 2393342464. Its totient is φ = 2392704000.

The previous prime is 2393023223. The next prime is 2393023249. The reversal of 2393023231 is 1323203932.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2393023231 - 23 = 2393023223 is a prime.

It is a super-2 number, since 2×23930232312 = 11453120368211358722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2393023231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2393023631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148095 + ... + 163456.

It is an arithmetic number, because the mean of its divisors is an integer number (598335616).

Almost surely, 22393023231 is an apocalyptic number.

2393023231 is a deficient number, since it is larger than the sum of its proper divisors (319233).

2393023231 is an equidigital number, since it uses as much as digits as its factorization.

2393023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319232.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 2393023231 is about 48918.5366808943. The cubic root of 2393023231 is about 1337.5672857057.

The spelling of 2393023231 in words is "two billion, three hundred ninety-three million, twenty-three thousand, two hundred thirty-one".

Divisors: 1 7681 311551 2393023231