Search a number
-
+
230401312 = 259477603
BaseRepresentation
bin11011011101110…
…10010100100000
3121001112121011221
431232322110200
5432440320222
634510144424
75465243641
oct1556722440
9531477157
10230401312
11109067a09
12651b2114
133896cb4b
14228576c8
15153620c7
hexdbba520

230401312 has 24 divisors (see below), whose sum is σ = 454141296. Its totient is φ = 115063872.

The previous prime is 230401279. The next prime is 230401321. The reversal of 230401312 is 213104032.

It is a happy number.

230401312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2304013123 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26503 + ... + 34105.

It is an arithmetic number, because the mean of its divisors is an integer number (18922554).

Almost surely, 2230401312 is an apocalyptic number.

It is an amenable number.

230401312 is a deficient number, since it is larger than the sum of its proper divisors (223739984).

230401312 is an equidigital number, since it uses as much as digits as its factorization.

230401312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8560 (or 8552 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 230401312 is about 15178.9759865414. The cubic root of 230401312 is about 613.0487095677.

Adding to 230401312 its reverse (213104032), we get a palindrome (443505344).

The spelling of 230401312 in words is "two hundred thirty million, four hundred one thousand, three hundred twelve".

Divisors: 1 2 4 8 16 32 947 1894 3788 7576 7603 15152 15206 30304 30412 60824 121648 243296 7200041 14400082 28800164 57600328 115200656 230401312