Base | Representation |
---|---|
bin | 11011111010101… |
… | …10110011111111 |
3 | 121022122222120210 |
4 | 31331112303333 |
5 | 434423004111 |
6 | 35123243503 |
7 | 5542364640 |
oct | 1575266377 |
9 | 538588523 |
10 | 234188031 |
11 | 110213a30 |
12 | 66519593 |
13 | 396975cc |
14 | 231616c7 |
15 | 1585e0a6 |
hex | df56cff |
234188031 has 32 divisors (see below), whose sum is σ = 390463488. Its totient is φ = 121292640.
The previous prime is 234187999. The next prime is 234188057. The reversal of 234188031 is 130881432.
It is not a de Polignac number, because 234188031 - 25 = 234187999 is a prime.
It is a super-2 number, since 2×2341880312 = 109688067727313922, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 234188031.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (234188081) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87150 + ... + 89796.
It is an arithmetic number, because the mean of its divisors is an integer number (12201984).
Almost surely, 2234188031 is an apocalyptic number.
234188031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
234188031 is a deficient number, since it is larger than the sum of its proper divisors (156275457).
234188031 is a wasteful number, since it uses less digits than its factorization.
234188031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3051.
The product of its (nonzero) digits is 4608, while the sum is 30.
The square root of 234188031 is about 15303.2032921216. The cubic root of 234188031 is about 616.3890264500.
The spelling of 234188031 in words is "two hundred thirty-four million, one hundred eighty-eight thousand, thirty-one".
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