Base | Representation |
---|---|
bin | 1100011010111100… |
… | …01100011010001100 |
3 | 122012201220100222200 |
4 | 12031132030122030 |
5 | 102124112014100 |
6 | 3021412241500 |
7 | 324152026131 |
oct | 61536143214 |
9 | 18181810880 |
10 | 6668469900 |
11 | 29121a5154 |
12 | 1361310290 |
13 | 8237188a1 |
14 | 4738da588 |
15 | 29067ce00 |
hex | 18d78c68c |
6668469900 has 216 divisors, whose sum is σ = 22098585600. Its totient is φ = 1677283200.
The previous prime is 6668469893. The next prime is 6668469917. The reversal of 6668469900 is 99648666.
It is a happy number.
It is an unprimeable number.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4633381 + ... + 4634819.
Almost surely, 26668469900 is an apocalyptic number.
6668469900 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 6668469900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11049292800).
6668469900 is an abundant number, since it is smaller than the sum of its proper divisors (15430115700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6668469900 is a wasteful number, since it uses less digits than its factorization.
6668469900 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1749 (or 1739 counting only the distinct ones).
The product of its (nonzero) digits is 3359232, while the sum is 54.
The square root of 6668469900 is about 81660.6998500503. The cubic root of 6668469900 is about 1882.2417332183.
The spelling of 6668469900 in words is "six billion, six hundred sixty-eight million, four hundred sixty-nine thousand, nine hundred".
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