Base | Representation |
---|---|
bin | 110010010110… |
… | …010000101100 |
3 | 220211112202220 |
4 | 302112100230 |
5 | 11334322010 |
6 | 1150515340 |
7 | 220120146 |
oct | 62262054 |
9 | 26745686 |
10 | 13198380 |
11 | 74a5158 |
12 | 4505b50 |
13 | 29715c0 |
14 | 1a77c96 |
15 | 125a970 |
hex | c9642c |
13198380 has 48 divisors (see below), whose sum is σ = 39800544. Its totient is φ = 3248640.
The previous prime is 13198379. The next prime is 13198429. The reversal of 13198380 is 8389131.
It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7681 + ... + 9240.
It is an arithmetic number, because the mean of its divisors is an integer number (829178).
Almost surely, 213198380 is an apocalyptic number.
13198380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13198380 is an abundant number, since it is smaller than the sum of its proper divisors (26602164).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13198380 is a wasteful number, since it uses less digits than its factorization.
13198380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16946 (or 16944 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 33.
The square root of 13198380 is about 3632.9574729138. The cubic root of 13198380 is about 236.3234815236.
Subtracting from 13198380 its reverse (8389131), we obtain a square (4809249 = 21932).
The spelling of 13198380 in words is "thirteen million, one hundred ninety-eight thousand, three hundred eighty".
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