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2801427 = 3933809
BaseRepresentation
bin1010101011111100010011
312021022211120
422223330103
51204121202
6140013323
732545266
oct12537423
95238746
102801427
111643832
12b31243
13771165
1452ccdd
153a50bc
hex2abf13

2801427 has 4 divisors (see below), whose sum is σ = 3735240. Its totient is φ = 1867616.

The previous prime is 2801401. The next prime is 2801431. The reversal of 2801427 is 7241082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2801427 - 26 = 2801363 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 2801397 and 2801406.

It is not an unprimeable number, because it can be changed into a prime (2801927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 466902 + ... + 466907.

It is an arithmetic number, because the mean of its divisors is an integer number (933810).

22801427 is an apocalyptic number.

2801427 is a deficient number, since it is larger than the sum of its proper divisors (933813).

2801427 is an equidigital number, since it uses as much as digits as its factorization.

2801427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933812.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 2801427 is about 1673.7463965607. The cubic root of 2801427 is about 140.9699146112.

The spelling of 2801427 in words is "two million, eight hundred one thousand, four hundred twenty-seven".

Divisors: 1 3 933809 2801427