Base | Representation |
---|---|
bin | 10110001110110110… |
… | …001111011010100101 |
3 | 2021121122021210012020 |
4 | 112032312033122211 |
5 | 342342040420234 |
6 | 14544423213353 |
7 | 1503361502610 |
oct | 261666173245 |
9 | 67548253166 |
10 | 23871420069 |
11 | a13a881242 |
12 | 47625a7259 |
13 | 233578a043 |
14 | 1226529177 |
15 | 94aa93549 |
hex | 58ed8f6a5 |
23871420069 has 8 divisors (see below), whose sum is σ = 36375497280. Its totient is φ = 13640811456.
The previous prime is 23871420031. The next prime is 23871420073. The reversal of 23871420069 is 96002417832.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 23871420069 - 213 = 23871411877 is a prime.
It is a super-2 number, since 2×238714200692 (a number of 22 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 23871420069.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23871420269) 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, 568367124 + ... + 568367165.
It is an arithmetic number, because the mean of its divisors is an integer number (4546937160).
Almost surely, 223871420069 is an apocalyptic number.
It is an amenable number.
23871420069 is a deficient number, since it is larger than the sum of its proper divisors (12504077211).
23871420069 is a wasteful number, since it uses less digits than its factorization.
23871420069 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1136734299.
The product of its (nonzero) digits is 145152, while the sum is 42.
The spelling of 23871420069 in words is "twenty-three billion, eight hundred seventy-one million, four hundred twenty thousand, sixty-nine".
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