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230729357 = 435365799
BaseRepresentation
bin11011100000010…
…10011010001101
3121002011021011202
431300022122031
5433031314412
634521155245
75501111225
oct1560123215
9532137152
10230729357
11109271421
126532bb25
1338a56261
1422901085
15153c93c2
hexdc0a68d

230729357 has 4 divisors (see below), whose sum is σ = 236095200. Its totient is φ = 225363516.

The previous prime is 230729333. The next prime is 230729363. The reversal of 230729357 is 753927032.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 230729357 - 216 = 230663821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230729357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230729327) 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 3 ways as a sum of consecutive naturals, for example, 2682857 + ... + 2682942.

It is an arithmetic number, because the mean of its divisors is an integer number (59023800).

Almost surely, 2230729357 is an apocalyptic number.

It is an amenable number.

230729357 is a deficient number, since it is larger than the sum of its proper divisors (5365843).

230729357 is an equidigital number, since it uses as much as digits as its factorization.

230729357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5365842.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 230729357 is about 15189.7780431447. The cubic root of 230729357 is about 613.3395241643.

The spelling of 230729357 in words is "two hundred thirty million, seven hundred twenty-nine thousand, three hundred fifty-seven".

Divisors: 1 43 5365799 230729357