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230753237 = 11138918131
BaseRepresentation
bin11011100000100…
…00001111010101
3121002012110221012
431300100033111
5433033100422
634521502005
75501240651
oct1560201725
9532173835
10230753237
11109288360
1265341905
1338a640a0
1422909a61
15153d14e2
hexdc103d5

230753237 has 16 divisors (see below), whose sum is σ = 274155840. Its totient is φ = 191452800.

The previous prime is 230753213. The next prime is 230753251. The reversal of 230753237 is 732357032.

It is not a de Polignac number, because 230753237 - 210 = 230752213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230753137) by changing a digit.

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, 3662 + ... + 21792.

It is an arithmetic number, because the mean of its divisors is an integer number (17134740).

Almost surely, 2230753237 is an apocalyptic number.

It is an amenable number.

230753237 is a deficient number, since it is larger than the sum of its proper divisors (43402603).

230753237 is a wasteful number, since it uses less digits than its factorization.

230753237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18244.

The product of its (nonzero) digits is 26460, while the sum is 32.

The square root of 230753237 is about 15190.5640777425. The cubic root of 230753237 is about 613.3606832151.

The spelling of 230753237 in words is "two hundred thirty million, seven hundred fifty-three thousand, two hundred thirty-seven".

Divisors: 1 11 13 89 143 979 1157 12727 18131 199441 235703 1613659 2592733 17750249 20977567 230753237