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2790129 = 3930043
BaseRepresentation
bin1010101001001011110001
312020202100010
422221023301
51203241004
6135445133
732500326
oct12511361
95222303
102790129
1116362a1
12b267a9
13768c84
14528b4d
153a1a89
hex2a92f1

2790129 has 4 divisors (see below), whose sum is σ = 3720176. Its totient is φ = 1860084.

The previous prime is 2790113. The next prime is 2790143. The reversal of 2790129 is 9210972.

2790129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 2790129 - 24 = 2790113 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2790096 and 2790105.

It is not an unprimeable number, because it can be changed into a prime (2790149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465019 + ... + 465024.

It is an arithmetic number, because the mean of its divisors is an integer number (930044).

22790129 is an apocalyptic number.

It is an amenable number.

2790129 is a deficient number, since it is larger than the sum of its proper divisors (930047).

2790129 is an equidigital number, since it uses as much as digits as its factorization.

2790129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930046.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 2790129 is about 1670.3679235426. The cubic root of 2790129 is about 140.7801513267.

The spelling of 2790129 in words is "two million, seven hundred ninety thousand, one hundred twenty-nine".

Divisors: 1 3 930043 2790129