Search a number
-
+
230975329831 = 1931196763367
BaseRepresentation
bin1101011100011100110…
…0111101011000100111
3211002012001211110212121
43113013030331120213
512241014141023311
6254035242530411
722454532624031
oct3270714753047
9732161743777
10230975329831
1189a57608a44
1238921206a07
1318a1c7943cc
14b271c94c51
15601ca09b71
hex35c733d627

230975329831 has 4 divisors (see below), whose sum is σ = 232172093392. Its totient is φ = 229778566272.

The previous prime is 230975329811. The next prime is 230975329843. The reversal of 230975329831 is 138923579032.

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 230975329831 - 27 = 230975329703 is a prime.

It is a super-2 number, since 2×2309753298312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230975329811) 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, 598381491 + ... + 598381876.

It is an arithmetic number, because the mean of its divisors is an integer number (58043023348).

Almost surely, 2230975329831 is an apocalyptic number.

230975329831 is a deficient number, since it is larger than the sum of its proper divisors (1196763561).

230975329831 is a wasteful number, since it uses less digits than its factorization.

230975329831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196763560.

The product of its (nonzero) digits is 2449440, while the sum is 52.

The spelling of 230975329831 in words is "two hundred thirty billion, nine hundred seventy-five million, three hundred twenty-nine thousand, eight hundred thirty-one".

Divisors: 1 193 1196763367 230975329831