Base | Representation |
---|---|
bin | 11010001000010110110100 |
3 | 110220000101200 |
4 | 122020112310 |
5 | 3223144342 |
6 | 402452500 |
7 | 112136523 |
oct | 32102664 |
9 | 13800350 |
10 | 6849972 |
11 | 3959538 |
12 | 2364130 |
13 | 155ab4c |
14 | ca44ba |
15 | 90494c |
hex | 6885b4 |
6849972 has 36 divisors (see below), whose sum is σ = 17428320. Its totient is φ = 2268432.
The previous prime is 6849971. The next prime is 6849991. The reversal of 6849972 is 2799486.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (36).
It is a super-3 number, since 3×68499723 (a number of 21 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6849971) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5913 + ... + 6975.
It is an arithmetic number, because the mean of its divisors is an integer number (484120).
Almost surely, 26849972 is an apocalyptic number.
It is an amenable number.
6849972 is an abundant number, since it is smaller than the sum of its proper divisors (10578348).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6849972 is a wasteful number, since it uses less digits than its factorization.
6849972 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1252 (or 1247 counting only the distinct ones).
The product of its digits is 217728, while the sum is 45.
The square root of 6849972 is about 2617.2451165300. The cubic root of 6849972 is about 189.9166023651.
The spelling of 6849972 in words is "six million, eight hundred forty-nine thousand, nine hundred seventy-two".
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