Base | Representation |
---|---|
bin | 100111100000… |
… | …0001100001000 |
3 | 1102222011222200 |
4 | 1033000030020 |
5 | 20300211102 |
6 | 2015520200 |
7 | 341014311 |
oct | 117001410 |
9 | 42864880 |
10 | 20710152 |
11 | 10765931 |
12 | 6b29060 |
13 | 43a1738 |
14 | 2a71608 |
15 | 1c4151c |
hex | 13c0308 |
20710152 has 48 divisors (see below), whose sum is σ = 59046000. Its totient is φ = 6539616.
The previous prime is 20710141. The next prime is 20710159. The reversal of 20710152 is 25101702.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (20710159) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6202 + ... + 8937.
It is an arithmetic number, because the mean of its divisors is an integer number (1230125).
Almost surely, 220710152 is an apocalyptic number.
It is an amenable number.
20710152 is an abundant number, since it is smaller than the sum of its proper divisors (38335848).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20710152 is a wasteful number, since it uses less digits than its factorization.
20710152 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15170 (or 15163 counting only the distinct ones).
The product of its (nonzero) digits is 140, while the sum is 18.
The square root of 20710152 is about 4550.8408014344. The cubic root of 20710152 is about 274.6172173000.
Adding to 20710152 its reverse (25101702), we get a palindrome (45811854).
The spelling of 20710152 in words is "twenty million, seven hundred ten thousand, one hundred fifty-two".
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