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2275940 = 225113797
BaseRepresentation
bin1000101011101001100100
311021122000002
420223221210
51040312230
6120440432
725226252
oct10535144
94248002
102275940
111314a47
12919118
13618c14
144335d2
152ee545
hex22ba64

2275940 has 12 divisors (see below), whose sum is σ = 4779516. Its totient is φ = 910368.

The previous prime is 2275937. The next prime is 2275961. The reversal of 2275940 is 495722.

It can be written as a sum of positive squares in 2 ways, for example, as 652864 + 1623076 = 808^2 + 1274^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56879 + ... + 56918.

It is an arithmetic number, because the mean of its divisors is an integer number (398293).

22275940 is an apocalyptic number.

2275940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2275940 is an abundant number, since it is smaller than the sum of its proper divisors (2503576).

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

2275940 is a wasteful number, since it uses less digits than its factorization.

2275940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113806 (or 113804 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 2275940 is about 1508.6218876843. The cubic root of 2275940 is about 131.5387174133.

Subtracting from 2275940 its sum of digits (29), we obtain a triangular number (2275911 = T2133).

The spelling of 2275940 in words is "two million, two hundred seventy-five thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 113797 227594 455188 568985 1137970 2275940