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2197080 = 2332517359
BaseRepresentation
bin1000011000011001011000
311010121211100
420120121120
51030301310
6115031400
724450324
oct10303130
94117740
102197080
111270776
1289b560
135bc062
14412984
152d5ec0
hex218658

2197080 has 96 divisors (see below), whose sum is σ = 7581600. Its totient is φ = 549888.

The previous prime is 2197049. The next prime is 2197087. The reversal of 2197080 is 807912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5941 + ... + 6299.

It is an arithmetic number, because the mean of its divisors is an integer number (78975).

22197080 is an apocalyptic number.

2197080 is a gapful number since it is divisible by the number (20) 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 2197080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3790800).

2197080 is an abundant number, since it is smaller than the sum of its proper divisors (5384520).

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

2197080 is a wasteful number, since it uses less digits than its factorization.

2197080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 2197080 is about 1482.2550387838. The cubic root of 2197080 is about 130.0015778901.

The spelling of 2197080 in words is "two million, one hundred ninety-seven thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 17 18 20 24 30 34 36 40 45 51 60 68 72 85 90 102 120 136 153 170 180 204 255 306 340 359 360 408 510 612 680 718 765 1020 1077 1224 1436 1530 1795 2040 2154 2872 3060 3231 3590 4308 5385 6103 6120 6462 7180 8616 10770 12206 12924 14360 16155 18309 21540 24412 25848 30515 32310 36618 43080 48824 54927 61030 64620 73236 91545 109854 122060 129240 146472 183090 219708 244120 274635 366180 439416 549270 732360 1098540 2197080