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230403012 = 22372742893
BaseRepresentation
bin11011011101110…
…10101111000100
3121001112200111220
431232322233010
5432440344022
634510200340
75465251620
oct1556725704
9531480456
10230403012
11109069214
12651b30b0
1338970858
1422858180
151536285c
hexdbbabc4

230403012 has 24 divisors (see below), whose sum is σ = 614408256. Its totient is φ = 65829408.

The previous prime is 230403007. The next prime is 230403013. The reversal of 230403012 is 210304032.

It is a junction number, because it is equal to n+sod(n) for n = 230402982 and 230403000.

It is not an unprimeable number, because it can be changed into a prime (230403013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1371363 + ... + 1371530.

It is an arithmetic number, because the mean of its divisors is an integer number (25600344).

Almost surely, 2230403012 is an apocalyptic number.

It is an amenable number.

230403012 is an abundant number, since it is smaller than the sum of its proper divisors (384005244).

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

230403012 is a wasteful number, since it uses less digits than its factorization.

230403012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742907 (or 2742905 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 230403012 is about 15179.0319849455. The cubic root of 230403012 is about 613.0502173430.

Adding to 230403012 its reverse (210304032), we get a palindrome (440707044).

The spelling of 230403012 in words is "two hundred thirty million, four hundred three thousand, twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 2742893 5485786 8228679 10971572 16457358 19200251 32914716 38400502 57600753 76801004 115201506 230403012