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230312299 = 723126773
BaseRepresentation
bin11011011101001…
…00100101101011
3121001101002002011
431232210211223
5432424443144
634504220351
75464423300
oct1556444553
9531332064
10230312299
11109007048
126516a6b7
133893b489
14228330a7
1515345a34
hexdba496b

230312299 has 36 divisors (see below), whose sum is σ = 284816232. Its totient is φ = 185613120.

The previous prime is 230312273. The next prime is 230312323. The reversal of 230312299 is 992213032.

It is a happy number.

It is not a de Polignac number, because 230312299 - 215 = 230279531 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

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 230312299.

It is not an unprimeable number, because it can be changed into a prime (230312099) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3154927 + ... + 3154999.

It is an arithmetic number, because the mean of its divisors is an integer number (7911562).

Almost surely, 2230312299 is an apocalyptic number.

230312299 is a deficient number, since it is larger than the sum of its proper divisors (54503933).

230312299 is an equidigital number, since it uses as much as digits as its factorization.

230312299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 230312299 is about 15176.0435884983. The cubic root of 230312299 is about 612.9697512012.

The spelling of 230312299 in words is "two hundred thirty million, three hundred twelve thousand, two hundred ninety-nine".

Divisors: 1 7 31 49 67 73 217 469 511 961 1519 2077 2263 3283 3577 4891 6727 14539 15841 34237 47089 64387 70153 101773 110887 151621 239659 450709 491071 1061347 3154963 3437497 4700251 7429429 32901757 230312299