Base | Representation |
---|---|
bin | 10010100110100… |
… | …01001001101010 |
3 | 101212121221202220 |
4 | 21103101021222 |
5 | 304421432210 |
6 | 23252334510 |
7 | 3603240255 |
oct | 1123211152 |
9 | 355557686 |
10 | 156045930 |
11 | 800a1687 |
12 | 44314436 |
13 | 26437a91 |
14 | 16a2009c |
15 | da75c70 |
hex | 94d126a |
156045930 has 64 divisors (see below), whose sum is σ = 386332416. Its totient is φ = 40320000.
The previous prime is 156045919. The next prime is 156045943. The reversal of 156045930 is 39540651.
It is a happy number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 156045891 and 156045900.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129330 + ... + 130530.
It is an arithmetic number, because the mean of its divisors is an integer number (6036444).
Almost surely, 2156045930 is an apocalyptic number.
156045930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 156045930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193166208).
156045930 is an abundant number, since it is smaller than the sum of its proper divisors (230286486).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
156045930 is a wasteful number, since it uses less digits than its factorization.
156045930 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1343.
The product of its (nonzero) digits is 16200, while the sum is 33.
The square root of 156045930 is about 12491.8345330060. The cubic root of 156045930 is about 538.3740874253.
The spelling of 156045930 in words is "one hundred fifty-six million, forty-five thousand, nine hundred thirty".
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