Base | Representation |
---|---|
bin | 100001111111001100… |
… | …0011000011000111110 |
3 | 20222101121110000222002 |
4 | 1003332120120120332 |
5 | 2143434220442313 |
6 | 53310242422302 |
7 | 5162456436404 |
oct | 1037630303076 |
9 | 228347400862 |
10 | 72987280958 |
11 | 28a54465509 |
12 | 1218b361992 |
13 | 6b622c7817 |
14 | 376566b474 |
15 | 1d729e1058 |
hex | 10fe61863e |
72987280958 has 16 divisors (see below), whose sum is σ = 113432711040. Its totient is φ = 35185130400.
The previous prime is 72987280957. The next prime is 72987280969. The reversal of 72987280958 is 85908278927.
It is a junction number, because it is equal to n+sod(n) for n = 72987280894 and 72987280903.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72987280957) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2171453 + ... + 2204808.
It is an arithmetic number, because the mean of its divisors is an integer number (7089544440).
Almost surely, 272987280958 is an apocalyptic number.
72987280958 is a deficient number, since it is larger than the sum of its proper divisors (40445430082).
72987280958 is a wasteful number, since it uses less digits than its factorization.
72987280958 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4376563.
The product of its (nonzero) digits is 40642560, while the sum is 65.
The spelling of 72987280958 in words is "seventy-two billion, nine hundred eighty-seven million, two hundred eighty thousand, nine hundred fifty-eight".
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