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230145113 = 1120922283
BaseRepresentation
bin11011011011110…
…11110001011001
3121001001120202002
431231323301121
5432404120423
634500450345
75463126002
oct1555736131
9531046662
10230145113
11108a02480
12650a99b5
13388b0353
14227cc1a9
1515311228
hexdb7bc59

230145113 has 4 divisors (see below), whose sum is σ = 251067408. Its totient is φ = 209222820.

The previous prime is 230145109. The next prime is 230145127. The reversal of 230145113 is 311541032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230145113 - 22 = 230145109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230145413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10461131 + ... + 10461152.

It is an arithmetic number, because the mean of its divisors is an integer number (62766852).

Almost surely, 2230145113 is an apocalyptic number.

It is an amenable number.

230145113 is a deficient number, since it is larger than the sum of its proper divisors (20922295).

230145113 is a wasteful number, since it uses less digits than its factorization.

230145113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20922294.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 230145113 is about 15170.5343676484. The cubic root of 230145113 is about 612.8213950078.

Adding to 230145113 its reverse (311541032), we get a palindrome (541686145).

The spelling of 230145113 in words is "two hundred thirty million, one hundred forty-five thousand, one hundred thirteen".

Divisors: 1 11 20922283 230145113