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234111031 = 71110130103
BaseRepresentation
bin11011111010001…
…00000000110111
3121022112001221221
431331010000313
5434413023111
635121451211
75541624310
oct1575040067
9538461857
10234111031
111101710a0
12664a0b07
133966b54b
1423141607
1515846371
hexdf44037

234111031 has 16 divisors (see below), whose sum is σ = 294778368. Its totient is φ = 180612000.

The previous prime is 234110993. The next prime is 234111037. The reversal of 234111031 is 130111432.

234111031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 234111031 - 211 = 234108983 is a prime.

It is a super-2 number, since 2×2341110312 = 109615949671765922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234110996 and 234111014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234111037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7275 + ... + 22828.

It is an arithmetic number, because the mean of its divisors is an integer number (18423648).

Almost surely, 2234111031 is an apocalyptic number.

234111031 is a deficient number, since it is larger than the sum of its proper divisors (60667337).

234111031 is a wasteful number, since it uses less digits than its factorization.

234111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30222.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 234111031 is about 15300.6872721457. The cubic root of 234111031 is about 616.3214637063.

Adding to 234111031 its reverse (130111432), we get a palindrome (364222463).

It can be divided in two parts, 23411 and 1031, that added together give a palindrome (24442).

The spelling of 234111031 in words is "two hundred thirty-four million, one hundred eleven thousand, thirty-one".

Divisors: 1 7 11 77 101 707 1111 7777 30103 210721 331133 2317931 3040403 21282821 33444433 234111031