Base | Representation |
---|---|
bin | 101011011111010001… |
… | …0101111011010100001 |
3 | 22221001120210222221200 |
4 | 1112332202233122201 |
5 | 3012231104410421 |
6 | 110523035111413 |
7 | 6514214115201 |
oct | 1267642573241 |
9 | 287046728850 |
10 | 93391091361 |
11 | 36674922237 |
12 | 161245a2569 |
13 | 8a64549209 |
14 | 473d42a401 |
15 | 2668e24726 |
hex | 15be8af6a1 |
93391091361 has 18 divisors (see below), whose sum is σ = 135040345362. Its totient is φ = 62195182560.
The previous prime is 93391091351. The next prime is 93391091363. The reversal of 93391091361 is 16319019339.
It can be written as a sum of positive squares in only one way, i.e., 77247864225 + 16143227136 = 277935^2 + 127056^2 .
It is not a de Polignac number, because 93391091361 - 25 = 93391091329 is a prime.
It is a super-5 number, since 5×933910913615 (a number of 56 digits) contains 55555 as substring.
It is not an unprimeable number, because it can be changed into a prime (93391091363) by changing a digit.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 35280540 + ... + 35283186.
It is an arithmetic number, because the mean of its divisors is an integer number (7502241409).
Almost surely, 293391091361 is an apocalyptic number.
It is an amenable number.
93391091361 is a deficient number, since it is larger than the sum of its proper divisors (41649254001).
93391091361 is an equidigital number, since it uses as much as digits as its factorization.
93391091361 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6781 (or 4131 counting only the distinct ones).
The product of its (nonzero) digits is 118098, while the sum is 45.
The spelling of 93391091361 in words is "ninety-three billion, three hundred ninety-one million, ninety-one thousand, three hundred sixty-one".
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