Base | Representation |
---|---|
bin | 10111110010000… |
… | …100010000110000 |
3 | 1000210210022221220 |
4 | 113302010100300 |
5 | 1304121004444 |
6 | 103331545040 |
7 | 12613310061 |
oct | 2762042060 |
9 | 1023708856 |
10 | 399000624 |
11 | 195253090 |
12 | b175b180 |
13 | 64881759 |
14 | 3adc4568 |
15 | 25067619 |
hex | 17c84430 |
399000624 has 80 divisors (see below), whose sum is σ = 1129749120. Its totient is φ = 120340480.
The previous prime is 399000583. The next prime is 399000649. The reversal of 399000624 is 426000993.
It is a Cunningham number, because it is equal to 199752-1.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118192 + ... + 121520.
It is an arithmetic number, because the mean of its divisors is an integer number (14121864).
Almost surely, 2399000624 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 399000624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564874560).
399000624 is an abundant number, since it is smaller than the sum of its proper divisors (730748496).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
399000624 is a wasteful number, since it uses less digits than its factorization.
399000624 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3578 (or 3572 counting only the distinct ones).
The product of its (nonzero) digits is 11664, while the sum is 33.
The square root of 399000624 is about 19974.9999749687. Note that the first 4 decimals coincide. The cubic root of 399000624 is about 736.1921658744.
The spelling of 399000624 in words is "three hundred ninety-nine million, six hundred twenty-four", and thus it is an aban number.
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