Base | Representation |
---|---|
bin | 111111101111001000… |
… | …101111000001001001 |
3 | 20112122110110010212211 |
4 | 333233020233001021 |
5 | 2110124224210201 |
6 | 51234520505121 |
7 | 4641631052320 |
oct | 775710570111 |
9 | 215573403784 |
10 | 68436553801 |
11 | 27029717880 |
12 | 1131b31b1a1 |
13 | 65b856c965 |
14 | 34531190b7 |
15 | 1ba8232651 |
hex | fef22f049 |
68436553801 has 16 divisors (see below), whose sum is σ = 85493173248. Its totient is φ = 53221136400.
The previous prime is 68436553769. The next prime is 68436553811. The reversal of 68436553801 is 10835563486.
It is a cyclic number.
It is not a de Polignac number, because 68436553801 - 25 = 68436553769 is a prime.
It is not an unprimeable number, because it can be changed into a prime (68436553811) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 844755 + ... + 922216.
It is an arithmetic number, because the mean of its divisors is an integer number (5343323328).
Almost surely, 268436553801 is an apocalyptic number.
It is an amenable number.
68436553801 is a deficient number, since it is larger than the sum of its proper divisors (17056619447).
68436553801 is a wasteful number, since it uses less digits than its factorization.
68436553801 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1767492.
The product of its (nonzero) digits is 2073600, while the sum is 49.
The spelling of 68436553801 in words is "sixty-eight billion, four hundred thirty-six million, five hundred fifty-three thousand, eight hundred one".
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