Base | Representation |
---|---|
bin | 100000000100000110… |
… | …0001001100111110000 |
3 | 20120201202100220111000 |
4 | 1000020030021213300 |
5 | 2112004330121400 |
6 | 51344333522000 |
7 | 4655223551055 |
oct | 1001014114760 |
9 | 216652326430 |
10 | 68856879600 |
11 | 27224a05873 |
12 | 11418043300 |
13 | 6654679a52 |
14 | 3492c9102c |
15 | 1bd00ad600 |
hex | 10083099f0 |
68856879600 has 120 divisors (see below), whose sum is σ = 245079524720. Its totient is φ = 18361831680.
The previous prime is 68856879599. The next prime is 68856879601. The reversal of 68856879600 is 697865886.
68856879600 is a `hidden beast` number, since 6 + 8 + 8 + 568 + 7 + 9 + 60 + 0 = 666.
It is an interprime number because it is at equal distance from previous prime (68856879599) and next prime (68856879601).
It is a tau number, because it is divible by the number of its divisors (120).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68856879601) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3177019 + ... + 3198618.
Almost surely, 268856879600 is an apocalyptic number.
68856879600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
68856879600 is an abundant number, since it is smaller than the sum of its proper divisors (176222645120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68856879600 is a wasteful number, since it uses less digits than its factorization.
68856879600 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6375664 (or 6375647 counting only the distinct ones).
The product of its (nonzero) digits is 34836480, while the sum is 63.
The spelling of 68856879600 in words is "sixty-eight billion, eight hundred fifty-six million, eight hundred seventy-nine thousand, six hundred".
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