Base | Representation |
---|---|
bin | 101100000001… |
… | …0010011110100 |
3 | 1121102111020122 |
4 | 1120002103310 |
5 | 21402000012 |
6 | 2142351112 |
7 | 400106120 |
oct | 130022364 |
9 | 47374218 |
10 | 23078132 |
11 | 12032a40 |
12 | 788b498 |
13 | 4a204cc |
14 | 30ca580 |
15 | 205ce72 |
hex | 16024f4 |
23078132 has 24 divisors (see below), whose sum is σ = 50352960. Its totient is φ = 8991360.
The previous prime is 23078123. The next prime is 23078137. The reversal of 23078132 is 23187032.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23078137) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37157 + ... + 37772.
It is an arithmetic number, because the mean of its divisors is an integer number (2098040).
Almost surely, 223078132 is an apocalyptic number.
23078132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
23078132 is an abundant number, since it is smaller than the sum of its proper divisors (27274828).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23078132 is a wasteful number, since it uses less digits than its factorization.
23078132 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 74951 (or 74949 counting only the distinct ones).
The product of its (nonzero) digits is 2016, while the sum is 26.
The square root of 23078132 is about 4803.9704412080. The cubic root of 23078132 is about 284.7083586871.
Subtracting 23078132 from its reverse (23187032), we obtain a square (108900 = 3302).
The spelling of 23078132 in words is "twenty-three million, seventy-eight thousand, one hundred thirty-two".
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