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230331133031 = 5912233192083
BaseRepresentation
bin1101011010000011001…
…1100010110001100111
3211000112011122212222212
43112200303202301213
512233204232224111
6253451311314035
722432551220166
oct3264063426147
9730464585885
10230331133031
1189756a1339a
123878151b91b
131894919297c
14b2104c53dd
155ed11ab98b
hex35a0ce2c67

230331133031 has 8 divisors (see below), whose sum is σ = 234426648960. Its totient is φ = 226242003832.

The previous prime is 230331133007. The next prime is 230331133091. The reversal of 230331133031 is 130331133032.

230331133031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 230331133031 - 234 = 213151263847 is a prime.

It is a super-2 number, since 2×2303311330312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 230331132988 and 230331133006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230331133091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1523885 + ... + 1668198.

It is an arithmetic number, because the mean of its divisors is an integer number (29303331120).

Almost surely, 2230331133031 is an apocalyptic number.

230331133031 is a deficient number, since it is larger than the sum of its proper divisors (4095515929).

230331133031 is a wasteful number, since it uses less digits than its factorization.

230331133031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193365.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 230331133031 its reverse (130331133032), we get a palindrome (360662266063).

Subtracting from 230331133031 its reverse (130331133032), we obtain a palindrome (99999999999).

The spelling of 230331133031 in words is "two hundred thirty billion, three hundred thirty-one million, one hundred thirty-three thousand, thirty-one".

Divisors: 1 59 1223 72157 3192083 188332897 3903917509 230331133031