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230363031 = 3251305927
BaseRepresentation
bin11011011101100…
…00111110010111
3121001110122200010
431232300332113
5432433104111
634505251303
75465024223
oct1556607627
9531418603
10230363031
11109041178
1265193b33
13389585b2
1422847783
1515355aa6
hexdbb0f97

230363031 has 8 divisors (see below), whose sum is σ = 308375424. Its totient is φ = 152963000.

The previous prime is 230363017. The next prime is 230363041. The reversal of 230363031 is 130363032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 230363031 - 26 = 230362967 is a prime.

It is a super-2 number, since 2×2303630312 = 106134252103013922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230362989 and 230363007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230363041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152211 + ... + 153716.

It is an arithmetic number, because the mean of its divisors is an integer number (38546928).

Almost surely, 2230363031 is an apocalyptic number.

230363031 is a deficient number, since it is larger than the sum of its proper divisors (78012393).

230363031 is a wasteful number, since it uses less digits than its factorization.

230363031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306181.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 230363031 is about 15177.7149465919. The cubic root of 230363031 is about 613.0147551640.

Subtracting from 230363031 its reverse (130363032), we obtain a palindrome (99999999).

The spelling of 230363031 in words is "two hundred thirty million, three hundred sixty-three thousand, thirty-one".

Divisors: 1 3 251 753 305927 917781 76787677 230363031