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2683220 = 225134161
BaseRepresentation
bin1010001111000101010100
312001022200112
422033011110
51141330340
6133302152
731543541
oct12170524
95038615
102683220
111572a41
12a94958
1372c407
144dbbc8
15380065
hex28f154

2683220 has 12 divisors (see below), whose sum is σ = 5634804. Its totient is φ = 1073280.

The previous prime is 2683217. The next prime is 2683223. The reversal of 2683220 is 223862.

It is an interprime number because it is at equal distance from previous prime (2683217) and next prime (2683223).

It can be written as a sum of positive squares in 2 ways, for example, as 839056 + 1844164 = 916^2 + 1358^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2683223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67061 + ... + 67100.

It is an arithmetic number, because the mean of its divisors is an integer number (469567).

22683220 is an apocalyptic number.

2683220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2683220 is an abundant number, since it is smaller than the sum of its proper divisors (2951584).

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

2683220 is a wasteful number, since it uses less digits than its factorization.

2683220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134170 (or 134168 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2683220 is about 1638.0537231727. The cubic root of 2683220 is about 138.9585991981.

The spelling of 2683220 in words is "two million, six hundred eighty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 134161 268322 536644 670805 1341610 2683220