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2271049 = 1121372
BaseRepresentation
bin1000101010011101001001
311021101021221
420222131021
51040133144
6120402041
725206064
oct10523511
94241257
102271049
111311300
12916321
13616921
144318db
152ecd84
hex22a749

2271049 has 9 divisors (see below), whose sum is σ = 2514631. Its totient is φ = 2049520.

The previous prime is 2271041. The next prime is 2271053. The reversal of 2271049 is 9401722.

The square root of 2271049 is 1507.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1334025 + 937024 = 1155^2 + 968^2 .

It is not a de Polignac number, because 2271049 - 23 = 2271041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2271041) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 16509 + ... + 16645.

22271049 is an apocalyptic number.

2271049 is the 1507-th square number.

2271049 is the 754-th centered octagonal number.

It is an amenable number.

2271049 is a deficient number, since it is larger than the sum of its proper divisors (243582).

2271049 is an equidigital number, since it uses as much as digits as its factorization.

2271049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The cubic root of 2271049 is about 131.4444241725. Note that the first 4 decimals are identical.

Multiplying 2271049 by its sum of digits (25), we get a square (56776225 = 75352).

The spelling of 2271049 in words is "two million, two hundred seventy-one thousand, forty-nine".

Divisors: 1 11 121 137 1507 16577 18769 206459 2271049