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231024730 = 25172946861
BaseRepresentation
bin11011100010100…
…10100001011010
3121002201021100111
431301102201122
5433120242410
634531354534
75503451326
oct1561224132
9532637314
10231024730
11109453332
1265452a4a
1338b2a831
142297a986
1515436b8a
hexdc5285a

231024730 has 32 divisors (see below), whose sum is σ = 455498640. Its totient is φ = 83973120.

The previous prime is 231024727. The next prime is 231024749. The reversal of 231024730 is 37420132.

It can be written as a sum of positive squares in 8 ways, for example, as 123010281 + 108014449 = 11091^2 + 10393^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18501 + ... + 28360.

Almost surely, 2231024730 is an apocalyptic number.

231024730 is a deficient number, since it is larger than the sum of its proper divisors (224473910).

231024730 is a wasteful number, since it uses less digits than its factorization.

231024730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46914.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 231024730 is about 15199.4976890685. The cubic root of 231024730 is about 613.6011390214.

Adding to 231024730 its reverse (37420132), we get a palindrome (268444862).

The spelling of 231024730 in words is "two hundred thirty-one million, twenty-four thousand, seven hundred thirty".

Divisors: 1 2 5 10 17 29 34 58 85 145 170 290 493 986 2465 4930 46861 93722 234305 468610 796637 1358969 1593274 2717938 3983185 6794845 7966370 13589690 23102473 46204946 115512365 231024730