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231033032 = 23374119037
BaseRepresentation
bin11011100010101…
…00100011001000
3121002201200201222
431301110203020
5433121024112
634531501212
75503514456
oct1561244310
9532650658
10231033032
1110945959a
1265457808
1338b31549
142297d9d6
1515439372
hexdc548c8

231033032 has 32 divisors (see below), whose sum is σ = 455769720. Its totient is φ = 109647360.

The previous prime is 231033031. The next prime is 231033037. The reversal of 231033032 is 230330132.

It can be written as a sum of positive squares in 4 ways, for example, as 111218116 + 119814916 = 10546^2 + 10946^2 .

It is a super-2 number, since 2×2310330322 = 106752523750226048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231033032.

It is not an unprimeable number, because it can be changed into a prime (231033031) 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, 2618 + ... + 21654.

Almost surely, 2231033032 is an apocalyptic number.

It is an amenable number.

231033032 is a deficient number, since it is larger than the sum of its proper divisors (224736688).

231033032 is a wasteful number, since it uses less digits than its factorization.

231033032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19121 (or 19117 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 231033032 is about 15199.7707877455. The cubic root of 231033032 is about 613.6084889642.

Adding to 231033032 its reverse (230330132), we get a palindrome (461363164).

The spelling of 231033032 in words is "two hundred thirty-one million, thirty-three thousand, thirty-two".

Divisors: 1 2 4 8 37 41 74 82 148 164 296 328 1517 3034 6068 12136 19037 38074 76148 152296 704369 780517 1408738 1561034 2817476 3122068 5634952 6244136 28879129 57758258 115516516 231033032