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2801133 = 32311237
BaseRepresentation
bin1010101011110111101101
312021022102200
422223313231
51204114013
6140012113
732544366
oct12536755
95238380
102801133
111643595
12b31039
13770c9a
1452cb6d
153a4e73
hex2abded

2801133 has 6 divisors (see below), whose sum is σ = 4046094. Its totient is φ = 1867416.

The previous prime is 2801119. The next prime is 2801137. The reversal of 2801133 is 3311082.

It can be written as a sum of positive squares in only one way, i.e., 2064969 + 736164 = 1437^2 + 858^2 .

It is not a de Polignac number, because 2801133 - 28 = 2800877 is a prime.

It is a super-3 number, since 3×28011333 = 65935976833326058911, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 155610 + ... + 155627.

It is an arithmetic number, because the mean of its divisors is an integer number (674349).

22801133 is an apocalyptic number.

It is an amenable number.

2801133 is a deficient number, since it is larger than the sum of its proper divisors (1244961).

2801133 is a wasteful number, since it uses less digits than its factorization.

2801133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311243 (or 311240 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2801133 is about 1673.6585673309. The cubic root of 2801133 is about 140.9649830050.

The spelling of 2801133 in words is "two million, eight hundred one thousand, one hundred thirty-three".

Divisors: 1 3 9 311237 933711 2801133