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230111492 = 22134425221
BaseRepresentation
bin11011011011100…
…11100100000100
3121000222212121212
431231303210010
5432402031432
634500030552
75462625662
oct1555634404
9530885555
10230111492
1110898a196
1265092458
133889ac60
14227bdc32
15153062b2
hexdb73904

230111492 has 12 divisors (see below), whose sum is σ = 433671756. Its totient is φ = 106205280.

The previous prime is 230111449. The next prime is 230111513. The reversal of 230111492 is 294111032.

230111492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 134189056 + 95922436 = 11584^2 + 9794^2 .

It is a super-4 number, since 4×2301114924 (a number of 35 digits) contains 4444 as substring.

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, 2212559 + ... + 2212662.

It is an arithmetic number, because the mean of its divisors is an integer number (36139313).

Almost surely, 2230111492 is an apocalyptic number.

It is an amenable number.

230111492 is a deficient number, since it is larger than the sum of its proper divisors (203560264).

230111492 is a wasteful number, since it uses less digits than its factorization.

230111492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4425238 (or 4425236 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 230111492 is about 15169.4262251411. The cubic root of 230111492 is about 612.7915519938.

The spelling of 230111492 in words is "two hundred thirty million, one hundred eleven thousand, four hundred ninety-two".

Divisors: 1 2 4 13 26 52 4425221 8850442 17700884 57527873 115055746 230111492