Base | Representation |
---|---|
bin | 111011010000101… |
… | …000000000010100 |
3 | 2120021210022002100 |
4 | 323100220000110 |
5 | 4014004321113 |
6 | 242353242100 |
7 | 33431451552 |
oct | 7320500024 |
9 | 2507708070 |
10 | 994213908 |
11 | 470231696 |
12 | 238b63330 |
13 | 12ac9266c |
14 | 96082bd2 |
15 | 5c43bd73 |
hex | 3b428014 |
994213908 has 36 divisors (see below), whose sum is σ = 2514217888. Its totient is φ = 331264080.
The previous prime is 994213901. The next prime is 994213951. The reversal of 994213908 is 809312499.
It is a tau number, because it is divible by the number of its divisors (36).
It is a super-2 number, since 2×9942139082 = 1976922589721264928, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (994213901) 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, 113535 + ... + 121977.
Almost surely, 2994213908 is an apocalyptic number.
It is an amenable number.
994213908 is an abundant number, since it is smaller than the sum of its proper divisors (1520003980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
994213908 is a wasteful number, since it uses less digits than its factorization.
994213908 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11724 (or 11719 counting only the distinct ones).
The product of its (nonzero) digits is 139968, while the sum is 45.
The square root of 994213908 is about 31531.1577332644. The cubic root of 994213908 is about 998.0675707894.
The spelling of 994213908 in words is "nine hundred ninety-four million, two hundred thirteen thousand, nine hundred eight".
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