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2189292 = 223767389
BaseRepresentation
bin1000010110011111101100
311010020010220
420112133230
51030024132
6114531340
724415530
oct10263754
94106126
102189292
111265936
12896b50
135b8651
1440dbc0
152d3a2c
hex2167ec

2189292 has 48 divisors (see below), whose sum is σ = 5940480. Its totient is φ = 614592.

The previous prime is 2189287. The next prime is 2189303. The reversal of 2189292 is 2929812.

It is a happy number.

2189292 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×21892922 = 9585998922528, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

2189292 is strictly pandigital in base 8.

It is a congruent number.

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, 5434 + ... + 5822.

It is an arithmetic number, because the mean of its divisors is an integer number (123760).

22189292 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2189292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2970240).

2189292 is an abundant number, since it is smaller than the sum of its proper divisors (3751188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2189292 is a wasteful number, since it uses less digits than its factorization.

2189292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 468 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 2189292 is about 1479.6256283263. The cubic root of 2189292 is about 129.8477902976.

The spelling of 2189292 in words is "two million, one hundred eighty-nine thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 67 84 134 201 268 389 402 469 778 804 938 1167 1407 1556 1876 2334 2723 2814 4668 5446 5628 8169 10892 16338 26063 32676 52126 78189 104252 156378 182441 312756 364882 547323 729764 1094646 2189292