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231030752 = 2527126641
BaseRepresentation
bin11011100010100…
…11111111100000
3121002201120121112
431301103333200
5433120441002
634531442452
75503505021
oct1561237740
9532646545
10231030752
11109457907
1265456428
1338b304b4
142297cc48
1515438852
hexdc53fe0

231030752 has 24 divisors (see below), whose sum is σ = 456537312. Its totient is φ = 115084800.

The previous prime is 231030713. The next prime is 231030757. The reversal of 231030752 is 257030132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231030757) 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, 4649 + ... + 21992.

It is an arithmetic number, because the mean of its divisors is an integer number (19022388).

Almost surely, 2231030752 is an apocalyptic number.

It is an amenable number.

231030752 is a deficient number, since it is larger than the sum of its proper divisors (225506560).

231030752 is a wasteful number, since it uses less digits than its factorization.

231030752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26922 (or 26914 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 231030752 is about 15199.6957864294. The cubic root of 231030752 is about 613.6064704477.

Adding to 231030752 its reverse (257030132), we get a palindrome (488060884).

The spelling of 231030752 in words is "two hundred thirty-one million, thirty thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 32 271 542 1084 2168 4336 8672 26641 53282 106564 213128 426256 852512 7219711 14439422 28878844 57757688 115515376 231030752