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2898980 = 225720707
BaseRepresentation
bin1011000011110000100100
312110021122122
423003300210
51220231410
6142045112
733432560
oct13036044
95407578
102898980
111700057
12b79798
137a6696
145566a0
153c3e55
hex2c3c24

2898980 has 24 divisors (see below), whose sum is σ = 6957888. Its totient is φ = 993888.

The previous prime is 2898979. The next prime is 2898983. The reversal of 2898980 is 898982.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2898983) 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, 10214 + ... + 10493.

It is an arithmetic number, because the mean of its divisors is an integer number (289912).

22898980 is an apocalyptic number.

2898980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2898980 is an abundant number, since it is smaller than the sum of its proper divisors (4058908).

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

2898980 is a wasteful number, since it uses less digits than its factorization.

2898980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20723 (or 20721 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 2898980 is about 1702.6391279423. The cubic root of 2898980 is about 142.5875936271.

The spelling of 2898980 in words is "two million, eight hundred ninety-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 20707 41414 82828 103535 144949 207070 289898 414140 579796 724745 1449490 2898980