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2197020 = 223575231
BaseRepresentation
bin1000011000011000011100
311010121202010
420120120130
51030301040
6115031220
724450210
oct10303034
94117663
102197020
111270721
1289b510
135bc017
14412940
152d5e80
hex21861c

2197020 has 48 divisors (see below), whose sum is σ = 7031808. Its totient is φ = 502080.

The previous prime is 2196979. The next prime is 2197021. The reversal of 2197020 is 207912.

It is a happy number.

2197020 is nontrivially palindromic in base 11.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2197021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2196 + ... + 3035.

It is an arithmetic number, because the mean of its divisors is an integer number (146496).

22197020 is an apocalyptic number.

2197020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2197020 is an abundant number, since it is smaller than the sum of its proper divisors (4834788).

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

2197020 is a wasteful number, since it uses less digits than its factorization.

2197020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250 (or 5248 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 2197020 is about 1482.2347992137. The cubic root of 2197020 is about 130.0003944761. Note that the first 3 decimals are identical.

The spelling of 2197020 in words is "two million, one hundred ninety-seven thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 5231 10462 15693 20924 26155 31386 36617 52310 62772 73234 78465 104620 109851 146468 156930 183085 219702 313860 366170 439404 549255 732340 1098510 2197020