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2272061 = 11206551
BaseRepresentation
bin1000101010101100111101
311021102200102
420222230331
51040201221
6120410445
725212041
oct10525475
94242612
102272061
111312040
12916a25
1361721c
14432021
152ed30b
hex22ab3d

2272061 has 4 divisors (see below), whose sum is σ = 2478624. Its totient is φ = 2065500.

The previous prime is 2272019. The next prime is 2272073. The reversal of 2272061 is 1602722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2272061 - 210 = 2271037 is a prime.

It is a super-2 number, since 2×22720612 = 10324522375442, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103265 + ... + 103286.

It is an arithmetic number, because the mean of its divisors is an integer number (619656).

22272061 is an apocalyptic number.

It is an amenable number.

2272061 is a deficient number, since it is larger than the sum of its proper divisors (206563).

2272061 is a wasteful number, since it uses less digits than its factorization.

2272061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206562.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 2272061 is about 1507.3357290265. The cubic root of 2272061 is about 131.4639455484.

Adding to 2272061 its reverse (1602722), we get a palindrome (3874783).

The spelling of 2272061 in words is "two million, two hundred seventy-two thousand, sixty-one".

Divisors: 1 11 206551 2272061