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2898990 = 23551193
BaseRepresentation
bin1011000011110000101110
312110021200000
423003300232
51220231430
6142045130
733432603
oct13036056
95407600
102898990
111700066
12b797a6
137a66a3
145566aa
153c3e60
hex2c3c2e

2898990 has 48 divisors (see below), whose sum is σ = 7823088. Its totient is φ = 772416.

The previous prime is 2898983. The next prime is 2898991. The reversal of 2898990 is 998982.

2898990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a plaindrome in base 14.

It is a zygodrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2898991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1834 + ... + 3026.

It is an arithmetic number, because the mean of its divisors is an integer number (162981).

22898990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2898990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3911544).

2898990 is an abundant number, since it is smaller than the sum of its proper divisors (4924098).

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

2898990 is a wasteful number, since it uses less digits than its factorization.

2898990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215 (or 1203 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 2898990 is about 1702.6420645573. The cubic root of 2898990 is about 142.5877575784.

The spelling of 2898990 in words is "two million, eight hundred ninety-eight thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 243 270 405 486 810 1193 1215 2386 2430 3579 5965 7158 10737 11930 17895 21474 32211 35790 53685 64422 96633 107370 161055 193266 289899 322110 483165 579798 966330 1449495 2898990