Base | Representation |
---|---|
bin | 11011111010000… |
… | …10101111100111 |
3 | 121022111210211100 |
4 | 31331002233213 |
5 | 434412341311 |
6 | 35121411143 |
7 | 5541603201 |
oct | 1575025747 |
9 | 538453740 |
10 | 234105831 |
11 | 1101681a3 |
12 | 66499ab3 |
13 | 3966907b |
14 | 2313d771 |
15 | 15844a56 |
hex | df42be7 |
234105831 has 24 divisors (see below), whose sum is σ = 351862784. Its totient is φ = 149824080.
The previous prime is 234105811. The next prime is 234105841. The reversal of 234105831 is 138501432.
It is a happy number.
It is not a de Polignac number, because 234105831 - 222 = 229911527 is a prime.
It is a super-2 number, since 2×2341058312 = 109611080216401122, 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 = 234105795 and 234105804.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (234105811) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32130 + ... + 38736.
Almost surely, 2234105831 is an apocalyptic number.
234105831 is a deficient number, since it is larger than the sum of its proper divisors (117756953).
234105831 is a wasteful number, since it uses less digits than its factorization.
234105831 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6771 (or 6768 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 27.
The square root of 234105831 is about 15300.5173441946. The cubic root of 234105831 is about 616.3169004936.
It can be divided in two parts, 23410 and 5831, that added together give a square (29241 = 1712).
The spelling of 234105831 in words is "two hundred thirty-four million, one hundred five thousand, eight hundred thirty-one".
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