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2270540 = 2251071061
BaseRepresentation
bin1000101010010101001100
311021100121002
420222111030
51040124130
6120355432
725204436
oct10522514
94240532
102270540
111310988
12915b78
1361661c
14431656
152ecb45
hex22a54c

2270540 has 24 divisors (see below), whose sum is σ = 4817232. Its totient is φ = 898880.

The previous prime is 2270531. The next prime is 2270549. The reversal of 2270540 is 450722.

It is an interprime number because it is at equal distance from previous prime (2270531) and next prime (2270549).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (2270549) 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, 1610 + ... + 2670.

It is an arithmetic number, because the mean of its divisors is an integer number (200718).

22270540 is an apocalyptic number.

2270540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2270540 is an abundant number, since it is smaller than the sum of its proper divisors (2546692).

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

2270540 is a wasteful number, since it uses less digits than its factorization.

2270540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 2270540 is about 1506.8311119698. The cubic root of 2270540 is about 131.4346034229.

The spelling of 2270540 in words is "two million, two hundred seventy thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 107 214 428 535 1061 1070 2122 2140 4244 5305 10610 21220 113527 227054 454108 567635 1135270 2270540