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2890620 = 2233553101
BaseRepresentation
bin1011000001101101111100
312102212012000
423001231330
51214444440
6141542300
733366315
oct13015574
95385160
102890620
1116a4847
12b74990
137a2935
1455360c
153c1730
hex2c1b7c

2890620 has 96 divisors (see below), whose sum is σ = 9253440. Its totient is φ = 748800.

The previous prime is 2890619. The next prime is 2890627. The reversal of 2890620 is 260982.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2890627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28570 + ... + 28670.

It is an arithmetic number, because the mean of its divisors is an integer number (96390).

22890620 is an apocalyptic number.

2890620 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 2890620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4626720).

2890620 is an abundant number, since it is smaller than the sum of its proper divisors (6362820).

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

2890620 is a wasteful number, since it uses less digits than its factorization.

2890620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2890620 is about 1700.1823431621. The cubic root of 2890620 is about 142.4503982490.

The spelling of 2890620 in words is "two million, eight hundred ninety thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 53 54 60 90 101 106 108 135 159 180 202 212 265 270 303 318 404 477 505 530 540 606 636 795 909 954 1010 1060 1212 1431 1515 1590 1818 1908 2020 2385 2727 2862 3030 3180 3636 4545 4770 5353 5454 5724 6060 7155 9090 9540 10706 10908 13635 14310 16059 18180 21412 26765 27270 28620 32118 48177 53530 54540 64236 80295 96354 107060 144531 160590 192708 240885 289062 321180 481770 578124 722655 963540 1445310 2890620