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2690620 = 225294639
BaseRepresentation
bin1010010000111000111100
312001200211121
422100320330
51142044440
6133400324
731604242
oct12207074
95050747
102690620
111578559
12a990a4
137328aa
14500792
1538234a
hex290e3c

2690620 has 24 divisors (see below), whose sum is σ = 5846400. Its totient is φ = 1038912.

The previous prime is 2690599. The next prime is 2690621. The reversal of 2690620 is 260962.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2690621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1740 + ... + 2899.

It is an arithmetic number, because the mean of its divisors is an integer number (243600).

22690620 is an apocalyptic number.

2690620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2690620 is an abundant number, since it is smaller than the sum of its proper divisors (3155780).

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

2690620 is a wasteful number, since it uses less digits than its factorization.

2690620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4677 (or 4675 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2690620 is about 1640.3109461319. The cubic root of 2690620 is about 139.0862256788.

The spelling of 2690620 in words is "two million, six hundred ninety thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 4639 9278 18556 23195 46390 92780 134531 269062 538124 672655 1345310 2690620