Base | Representation |
---|---|
bin | 111001001110… |
… | …100110001010 |
3 | 1001020011212102 |
4 | 321032212022 |
5 | 12320030434 |
6 | 1253313402 |
7 | 241341410 |
oct | 71164612 |
9 | 31204772 |
10 | 15001994 |
11 | 8517247 |
12 | 5035862 |
13 | 3153527 |
14 | 1dc72b0 |
15 | 14b507e |
hex | e4e98a |
15001994 has 8 divisors (see below), whose sum is σ = 25717728. Its totient is φ = 6429420.
The previous prime is 15001991. The next prime is 15002017. The reversal of 15001994 is 49910051.
15001994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (15001991) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535772 + ... + 535799.
It is an arithmetic number, because the mean of its divisors is an integer number (3214716).
Almost surely, 215001994 is an apocalyptic number.
15001994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
15001994 is a deficient number, since it is larger than the sum of its proper divisors (10715734).
15001994 is a wasteful number, since it uses less digits than its factorization.
15001994 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1071580.
The product of its (nonzero) digits is 1620, while the sum is 29.
The square root of 15001994 is about 3873.2407619460. The cubic root of 15001994 is about 246.6321350086.
The spelling of 15001994 in words is "fifteen million, one thousand, nine hundred ninety-four".
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