Base | Representation |
---|---|
bin | 101010011110111010… |
… | …0001101011101100111 |
3 | 22201111001222211002222 |
4 | 1110331310031131213 |
5 | 2443320220110043 |
6 | 105524445422555 |
7 | 6406541122145 |
oct | 1247564153547 |
9 | 281431884088 |
10 | 91231410023 |
11 | 35766830726 |
12 | 1582126aa5b |
13 | 87abc93470 |
14 | 45b6686595 |
15 | 258e51dd68 |
hex | 153dd0d767 |
91231410023 has 8 divisors (see below), whose sum is σ = 98446110000. Its totient is φ = 84044838528.
The previous prime is 91231409977. The next prime is 91231410091. The reversal of 91231410023 is 32001413219.
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 91231410023 - 28 = 91231409767 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 91231409974 and 91231410001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (91231410223) 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, 7025378 + ... + 7038351.
It is an arithmetic number, because the mean of its divisors is an integer number (12305763750).
Almost surely, 291231410023 is an apocalyptic number.
91231410023 is a deficient number, since it is larger than the sum of its proper divisors (7214699977).
91231410023 is a wasteful number, since it uses less digits than its factorization.
91231410023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14064241.
The product of its (nonzero) digits is 1296, while the sum is 26.
The spelling of 91231410023 in words is "ninety-one billion, two hundred thirty-one million, four hundred ten thousand, twenty-three".
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