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230231295 = 3357243631
BaseRepresentation
bin11011011100100…
…00110011111111
3121001012221222000
431232100303333
5432414400140
634502353343
75463635160
oct1556206377
9531187860
10230231295
11108a611a8
126512b853
1338910648
1422811767
151532ba30
hexdb90cff

230231295 has 32 divisors (see below), whose sum is σ = 467773440. Its totient is φ = 105248160.

The previous prime is 230231257. The next prime is 230231297. The reversal of 230231295 is 592132032.

It is not a de Polignac number, because 230231295 - 217 = 230100223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230231297) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120871 + ... + 122760.

It is an arithmetic number, because the mean of its divisors is an integer number (14617920).

Almost surely, 2230231295 is an apocalyptic number.

230231295 is an abundant number, since it is smaller than the sum of its proper divisors (237542145).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230231295 is a wasteful number, since it uses less digits than its factorization.

230231295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243652 (or 243646 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 230231295 is about 15173.3745422698. The cubic root of 230231295 is about 612.8978794799.

The spelling of 230231295 in words is "two hundred thirty million, two hundred thirty-one thousand, two hundred ninety-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 135 189 315 945 243631 730893 1218155 1705417 2192679 3654465 5116251 6578037 8527085 10963395 15348753 25581255 32890185 46046259 76743765 230231295