Base | Representation |
---|---|
bin | 1100001011001001100000 |
3 | 20000010202201 |
4 | 30023021200 |
5 | 1304111032 |
6 | 152222544 |
7 | 36061231 |
oct | 14131140 |
9 | 6003681 |
10 | 3191392 |
11 | 188a816 |
12 | 109aa54 |
13 | 8797c9 |
14 | 5d1088 |
15 | 4308e7 |
hex | 30b260 |
3191392 has 48 divisors (see below), whose sum is σ = 6879600. Its totient is φ = 1451520.
The previous prime is 3191389. The next prime is 3191407. The reversal of 3191392 is 2931913.
It is a self number, because there is not a number n which added to its sum of digits gives 3191392.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17542 + ... + 17722.
It is an arithmetic number, because the mean of its divisors is an integer number (143325).
Almost surely, 23191392 is an apocalyptic number.
3191392 is a gapful number since it is divisible by the number (32) 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 3191392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3439800).
3191392 is an abundant number, since it is smaller than the sum of its proper divisors (3688208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3191392 is a wasteful number, since it uses less digits than its factorization.
3191392 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 239 (or 231 counting only the distinct ones).
The product of its digits is 1458, while the sum is 28.
The square root of 3191392 is about 1786.4467526350. The cubic root of 3191392 is about 147.2290073584.
It can be divided in two parts, 319 and 1392, that added together give a triangular number (1711 = T58).
The spelling of 3191392 in words is "three million, one hundred ninety-one thousand, three hundred ninety-two".
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