Base | Representation |
---|---|
bin | 111100110010… |
… | …1110000011100 |
3 | 2012222101000100 |
4 | 1321211300130 |
5 | 31124432301 |
6 | 3055101100 |
7 | 534632223 |
oct | 171456034 |
9 | 65871010 |
10 | 31874076 |
11 | 16aa0513 |
12 | a811790 |
13 | 67b0000 |
14 | 4339cba |
15 | 2be9286 |
hex | 1e65c1c |
31874076 has 90 divisors (see below), whose sum is σ = 90100192. Its totient is φ = 9491040.
The previous prime is 31874069. The next prime is 31874093. The reversal of 31874076 is 67047813.
It is a super-3 number, since 3×318740763 (a number of 23 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a self number, because there is not a number n which added to its sum of digits gives 31874076.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1028181 + ... + 1028211.
Almost surely, 231874076 is an apocalyptic number.
31874076 is a gapful number since it is divisible by the number (36) 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 31874076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45050096).
31874076 is an abundant number, since it is smaller than the sum of its proper divisors (58226116).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31874076 is a wasteful number, since it uses less digits than its factorization.
31874076 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 93 (or 49 counting only the distinct ones).
The product of its (nonzero) digits is 28224, while the sum is 36.
The square root of 31874076 is about 5645.7130639096. The cubic root of 31874076 is about 317.0632215090.
The spelling of 31874076 in words is "thirty-one million, eight hundred seventy-four thousand, seventy-six".
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