Base | Representation |
---|---|
bin | 11111010110110100… |
… | …110101110010001001 |
3 | 10012220110001201121001 |
4 | 133112310311302021 |
5 | 1022423222301311 |
6 | 23244534215001 |
7 | 2301230220400 |
oct | 372664656211 |
9 | 105813051531 |
10 | 33668947081 |
11 | 13308274300 |
12 | 66377b4461 |
13 | 32375356c3 |
14 | 18b5824637 |
15 | d20ca94c1 |
hex | 7d6d35c89 |
33668947081 has 27 divisors (see below), whose sum is σ = 43068214413. Its totient is φ = 26224533720.
The previous prime is 33668947063. The next prime is 33668947157. The reversal of 33668947081 is 18074986633.
It is a happy number.
The square root of 33668947081 is 183491.
It is a perfect power (a square), and thus also a powerful number.
It is not a de Polignac number, because 33668947081 - 29 = 33668946569 is a prime.
It is a super-2 number, since 2×336689470812 (a number of 22 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (33668947181) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 14127616 + ... + 14129998.
Almost surely, 233668947081 is an apocalyptic number.
33668947081 is the 183491-st square number.
33668947081 is the 91746-th centered octagonal number.
It is an amenable number.
33668947081 is a deficient number, since it is larger than the sum of its proper divisors (9399267332).
33668947081 is an frugal number, since it uses more digits than its factorization.
33668947081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4802 (or 2401 counting only the distinct ones).
The product of its (nonzero) digits is 5225472, while the sum is 55.
The spelling of 33668947081 in words is "thirty-three billion, six hundred sixty-eight million, nine hundred forty-seven thousand, eighty-one".
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