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2280990 = 235139547
BaseRepresentation
bin1000101100111000011110
311021212221010
420230320132
51040442430
6120520050
725250055
oct10547036
94255833
102280990
111318818
12920026
1361b2ca
1443539c
15300cb0
hex22ce1e

2280990 has 32 divisors (see below), whose sum is σ = 5523840. Its totient is φ = 602784.

The previous prime is 2280989. The next prime is 2281001. The reversal of 2280990 is 990822.

2280990 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 (30).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3897 + ... + 4443.

It is an arithmetic number, because the mean of its divisors is an integer number (172620).

22280990 is an apocalyptic number.

2280990 is an abundant number, since it is smaller than the sum of its proper divisors (3242850).

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

2280990 is a wasteful number, since it uses less digits than its factorization.

2280990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 2280990 is about 1510.2946732343. The cubic root of 2280990 is about 131.6359343609.

The spelling of 2280990 in words is "two million, two hundred eighty thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 139 278 417 547 695 834 1094 1390 1641 2085 2735 3282 4170 5470 8205 16410 76033 152066 228099 380165 456198 760330 1140495 2280990