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2279380 = 225113969
BaseRepresentation
bin1000101100011111010100
311021210201111
420230133110
51040420010
6120504404
725242265
oct10543724
94253644
102279380
111317594
1291b104
1361a65c
1443496c
1530058a
hex22c7d4

2279380 has 12 divisors (see below), whose sum is σ = 4786740. Its totient is φ = 911744.

The previous prime is 2279363. The next prime is 2279393. The reversal of 2279380 is 839722.

2279380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1710864 + 568516 = 1308^2 + 754^2 .

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 3 ways as a sum of consecutive naturals, for example, 56965 + ... + 57004.

It is an arithmetic number, because the mean of its divisors is an integer number (398895).

22279380 is an apocalyptic number.

2279380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2279380 is an abundant number, since it is smaller than the sum of its proper divisors (2507360).

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

2279380 is a wasteful number, since it uses less digits than its factorization.

2279380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113978 (or 113976 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 2279380 is about 1509.7615705799. The cubic root of 2279380 is about 131.6049560376.

The spelling of 2279380 in words is "two million, two hundred seventy-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 113969 227938 455876 569845 1139690 2279380