Base | Representation |
---|---|
bin | 100001100110001001… |
… | …1101110100100110110 |
3 | 20220020001200111222000 |
4 | 1003030103232210312 |
5 | 2140224140402220 |
6 | 53051032520130 |
7 | 5132606040603 |
oct | 1031423564466 |
9 | 226201614860 |
10 | 72147200310 |
11 | 28663239489 |
12 | 11b95b50046 |
13 | 6a5a250493 |
14 | 36c5c6b6aa |
15 | 1d23d9d390 |
hex | 10cc4ee936 |
72147200310 has 32 divisors (see below), whose sum is σ = 192392534880. Its totient is φ = 19239253344.
The previous prime is 72147200243. The next prime is 72147200347. The reversal of 72147200310 is 1300274127.
It is a happy number.
72147200310 is a `hidden beast` number, since 7 + 2 + 147 + 200 + 310 = 666.
It is a super-2 number, since 2×721472003102 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133605657 + ... + 133606196.
It is an arithmetic number, because the mean of its divisors is an integer number (6012266715).
Almost surely, 272147200310 is an apocalyptic number.
72147200310 is an abundant number, since it is smaller than the sum of its proper divisors (120245334570).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72147200310 is a wasteful number, since it uses less digits than its factorization.
72147200310 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 267211869 (or 267211863 counting only the distinct ones).
The product of its (nonzero) digits is 2352, while the sum is 27.
Adding to 72147200310 its reverse (1300274127), we get a palindrome (73447474437).
The spelling of 72147200310 in words is "seventy-two billion, one hundred forty-seven million, two hundred thousand, three hundred ten".
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