Base | Representation |
---|---|
bin | 100001111111001111… |
… | …1111011100001011110 |
3 | 20222101202011120112010 |
4 | 1003332133323201132 |
5 | 2143440222303440 |
6 | 53310353052050 |
7 | 5162512321002 |
oct | 1037637734136 |
9 | 228352146463 |
10 | 72989259870 |
11 | 28a5559727a |
12 | 1218bb57026 |
13 | 6b6283b487 |
14 | 3765a24702 |
15 | 1d72c82580 |
hex | 10fe7fb85e |
72989259870 has 32 divisors (see below), whose sum is σ = 181214716320. Its totient is φ = 18792636800.
The previous prime is 72989259869. The next prime is 72989259877. The reversal of 72989259870 is 7895298927.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72989259877) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41946981 + ... + 41948720.
It is an arithmetic number, because the mean of its divisors is an integer number (5662959885).
Almost surely, 272989259870 is an apocalyptic number.
72989259870 is an abundant number, since it is smaller than the sum of its proper divisors (108225456450).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72989259870 is a wasteful number, since it uses less digits than its factorization.
72989259870 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 83895740.
The product of its (nonzero) digits is 45722880, while the sum is 66.
The spelling of 72989259870 in words is "seventy-two billion, nine hundred eighty-nine million, two hundred fifty-nine thousand, eight hundred seventy".
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