Base | Representation |
---|---|
bin | 100001100100011001… |
… | …1101011101001110001 |
3 | 20220001222011121111021 |
4 | 1003020303223221301 |
5 | 2140114121434311 |
6 | 53041134015441 |
7 | 5131263603610 |
oct | 1031063535161 |
9 | 226058147437 |
10 | 72088468081 |
11 | 28633074053 |
12 | 11b7a347581 |
13 | 6a4b028596 |
14 | 36bc13d877 |
15 | 1d1db4b171 |
hex | 10c8ceba71 |
72088468081 has 8 divisors (see below), whose sum is σ = 86722969280. Its totient is φ = 58538004048.
The previous prime is 72088468073. The next prime is 72088468087. The reversal of 72088468081 is 18086488027.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 72088468081 - 23 = 72088468073 is a prime.
It is a super-2 number, since 2×720884680812 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (72088468087) 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, 271009146 + ... + 271009411.
It is an arithmetic number, because the mean of its divisors is an integer number (10840371160).
Almost surely, 272088468081 is an apocalyptic number.
It is an amenable number.
72088468081 is a deficient number, since it is larger than the sum of its proper divisors (14634501199).
72088468081 is a wasteful number, since it uses less digits than its factorization.
72088468081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 542018583.
The product of its (nonzero) digits is 1376256, while the sum is 52.
The spelling of 72088468081 in words is "seventy-two billion, eighty-eight million, four hundred sixty-eight thousand, eighty-one".
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