Base | Representation |
---|---|
bin | 10011110010000… |
… | …100010010001000 |
3 | 212010111212000200 |
4 | 103302010102020 |
5 | 1134431014343 |
6 | 52533332200 |
7 | 11140014501 |
oct | 2362042210 |
9 | 763455020 |
10 | 331891848 |
11 | 160387292 |
12 | 93197060 |
13 | 539b5c12 |
14 | 32115ba8 |
15 | 1e20d4d3 |
hex | 13c84488 |
331891848 has 108 divisors (see below), whose sum is σ = 957142485. Its totient is φ = 103880448.
The previous prime is 331891831. The next prime is 331891849. The reversal of 331891848 is 848198133.
It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.
It can be written as a sum of positive squares in 2 ways, for example, as 209612484 + 122279364 = 14478^2 + 11058^2 .
It is an ABA number since it can be written as A⋅BA, here for A=2, B=12882.
It is a super-2 number, since 2×3318918482 = 220304397537710208, which contains 22 as substring.
It is a nude number because it is divisible by every one of its digits.
It is not an unprimeable number, because it can be changed into a prime (331891849) 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, 2937040 + ... + 2937152.
Almost surely, 2331891848 is an apocalyptic number.
331891848 is a gapful number since it is divisible by the number (38) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 331891848
331891848 is an abundant number, since it is smaller than the sum of its proper divisors (625250637).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
331891848 is a wasteful number, since it uses less digits than its factorization.
331891848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 276 (or 137 counting only the distinct ones).
The product of its digits is 165888, while the sum is 45.
The square root of 331891848 is about 18217.8991104902. The cubic root of 331891848 is about 692.3603600501.
Multiplying 331891848 by its product of digits (165888), we get a square (55056874881024 = 74200322).
The spelling of 331891848 in words is "three hundred thirty-one million, eight hundred ninety-one thousand, eight hundred forty-eight".
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