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2977289 = 7260761
BaseRepresentation
bin1011010110111000001001
312121021001222
423112320021
51230233124
6143451425
734210100
oct13267011
95537058
102977289
111753977
12bb6b75
13803213
14577037
153dc25e
hex2d6e09

2977289 has 6 divisors (see below), whose sum is σ = 3463434. Its totient is φ = 2551920.

The previous prime is 2977283. The next prime is 2977313. The reversal of 2977289 is 9827792.

2977289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2917264 + 60025 = 1708^2 + 245^2 .

It is not a de Polignac number, because 2977289 - 28 = 2977033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2977283) 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 5 ways as a sum of consecutive naturals, for example, 30332 + ... + 30429.

It is an arithmetic number, because the mean of its divisors is an integer number (577239).

22977289 is an apocalyptic number.

It is an amenable number.

2977289 is a deficient number, since it is larger than the sum of its proper divisors (486145).

2977289 is an equidigital number, since it uses as much as digits as its factorization.

2977289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60775 (or 60768 counting only the distinct ones).

The product of its digits is 127008, while the sum is 44.

The square root of 2977289 is about 1725.4822514300. The cubic root of 2977289 is about 143.8600910904.

The spelling of 2977289 in words is "two million, nine hundred seventy-seven thousand, two hundred eighty-nine".

Divisors: 1 7 49 60761 425327 2977289