Base | Representation |
---|---|
bin | 10111101010111… |
… | …11010101110100 |
3 | 111211122110201120 |
4 | 23311133111310 |
5 | 401313241010 |
6 | 31412023540 |
7 | 4630554210 |
oct | 1365372564 |
9 | 454573646 |
10 | 198571380 |
11 | a20a7687 |
12 | 56601bb0 |
13 | 321a6c77 |
14 | 1c52d940 |
15 | 12675e70 |
hex | bd5f574 |
198571380 has 96 divisors (see below), whose sum is σ = 644474880. Its totient is φ = 44741760.
The previous prime is 198571367. The next prime is 198571391. The reversal of 198571380 is 83175891.
It is a Harshad number since it is a multiple of its sum of digits (42).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26491 + ... + 33149.
It is an arithmetic number, because the mean of its divisors is an integer number (6713280).
Almost surely, 2198571380 is an apocalyptic number.
198571380 is a gapful number since it is divisible by the number (10) 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 198571380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322237440).
198571380 is an abundant number, since it is smaller than the sum of its proper divisors (445903500).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
198571380 is a wasteful number, since it uses less digits than its factorization.
198571380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6749 (or 6747 counting only the distinct ones).
The product of its (nonzero) digits is 60480, while the sum is 42.
The square root of 198571380 is about 14091.5357573261. The cubic root of 198571380 is about 583.4077822440.
The spelling of 198571380 in words is "one hundred ninety-eight million, five hundred seventy-one thousand, three hundred eighty".
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