Base | Representation |
---|---|
bin | 100001100110010101… |
… | …0100010110000101110 |
3 | 20220020110221101020120 |
4 | 1003030222202300232 |
5 | 2140232203244410 |
6 | 53051405025410 |
7 | 5133010630644 |
oct | 1031452426056 |
9 | 226213841216 |
10 | 72153181230 |
11 | 28666653a99 |
12 | 11b97b55266 |
13 | 6a5b5658a0 |
14 | 36c6987194 |
15 | 1d24680570 |
hex | 10ccaa2c2e |
72153181230 has 64 divisors (see below), whose sum is σ = 186522255360. Its totient is φ = 17757542016.
The previous prime is 72153181229. The next prime is 72153181267. The reversal of 72153181230 is 3218135127.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 72153181191 and 72153181200.
It is a congruent number.
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, 2670931 + ... + 2697809.
It is an arithmetic number, because the mean of its divisors is an integer number (2914410240).
Almost surely, 272153181230 is an apocalyptic number.
72153181230 is an abundant number, since it is smaller than the sum of its proper divisors (114369074130).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72153181230 is a wasteful number, since it uses less digits than its factorization.
72153181230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33785.
The product of its (nonzero) digits is 10080, while the sum is 33.
The spelling of 72153181230 in words is "seventy-two billion, one hundred fifty-three million, one hundred eighty-one thousand, two hundred thirty".
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