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232503031 = 474946873
BaseRepresentation
bin11011101101110…
…11011011110111
3121012111101012101
431312323123313
5434010044111
635023202531
75522146255
oct1566733367
9535441171
10232503031
1110a272a72
1265a46447
1339227677
1422c435d5
1515629bc1
hexddbb6f7

232503031 has 4 divisors (see below), whose sum is σ = 237449952. Its totient is φ = 227556112.

The previous prime is 232502993. The next prime is 232503041. The reversal of 232503031 is 130305232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-232503031 is a prime.

It is a super-2 number, since 2×2325030312 = 108115318848373922, which 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 (232503041) 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, 2473390 + ... + 2473483.

It is an arithmetic number, because the mean of its divisors is an integer number (59362488).

Almost surely, 2232503031 is an apocalyptic number.

232503031 is a deficient number, since it is larger than the sum of its proper divisors (4946921).

232503031 is an equidigital number, since it uses as much as digits as its factorization.

232503031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4946920.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 232503031 is about 15248.0500720584. The cubic root of 232503031 is about 614.9071452999.

Adding to 232503031 its reverse (130305232), we get a palindrome (362808263).

The spelling of 232503031 in words is "two hundred thirty-two million, five hundred three thousand, thirty-one".

Divisors: 1 47 4946873 232503031