Base | Representation |
---|---|
bin | 101010011001001011… |
… | …0101011010100000000 |
3 | 22200222200011101212010 |
4 | 1110302112223110000 |
5 | 2442422003243332 |
6 | 105453420132520 |
7 | 6402014511552 |
oct | 1246226532400 |
9 | 280880141763 |
10 | 91039118592 |
11 | 35678233294 |
12 | 15788997140 |
13 | 877b1a7a56 |
14 | 4598d0d4d2 |
15 | 257c6d89cc |
hex | 15325ab500 |
91039118592 has 144 divisors (see below), whose sum is σ = 244320137600. Its totient is φ = 30094073856.
The previous prime is 91039118561. The next prime is 91039118617. The reversal of 91039118592 is 29581193019.
It is a super-2 number, since 2×910391185922 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (48).
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, 57005538 + ... + 57007134.
Almost surely, 291039118592 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 91039118592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122160068800).
91039118592 is an abundant number, since it is smaller than the sum of its proper divisors (153281019008).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
91039118592 is a wasteful number, since it uses less digits than its factorization.
91039118592 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2188 (or 2174 counting only the distinct ones).
The product of its (nonzero) digits is 174960, while the sum is 48.
The spelling of 91039118592 in words is "ninety-one billion, thirty-nine million, one hundred eighteen thousand, five hundred ninety-two".
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