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2280988 = 221930013
BaseRepresentation
bin1000101100111000011100
311021212221001
420230320130
51040442423
6120520044
725250053
oct10547034
94255831
102280988
111318816
12920024
1361b2c8
1443539a
15300cad
hex22ce1c

2280988 has 12 divisors (see below), whose sum is σ = 4201960. Its totient is φ = 1080432.

The previous prime is 2280983. The next prime is 2280989. The reversal of 2280988 is 8890822.

It is a super-2 number, since 2×22809882 = 10405812512288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2280983) 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, 14931 + ... + 15082.

22280988 is an apocalyptic number.

It is an amenable number.

2280988 is a deficient number, since it is larger than the sum of its proper divisors (1920972).

2280988 is a wasteful number, since it uses less digits than its factorization.

2280988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30036 (or 30034 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 2280988 is about 1510.2940111117. The cubic root of 2280988 is about 131.6358958876.

The spelling of 2280988 in words is "two million, two hundred eighty thousand, nine hundred eighty-eight".

Divisors: 1 2 4 19 38 76 30013 60026 120052 570247 1140494 2280988