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2970289 = 71923971
BaseRepresentation
bin1011010101001010110001
312120220110201
423111022301
51230022124
6143355201
734150510
oct13251261
95526421
102970289
111749693
12bb2b01
137ccc8a
14574677
153da144
hex2d52b1

2970289 has 16 divisors (see below), whose sum is σ = 3732480. Its totient is φ = 2304720.

The previous prime is 2970287. The next prime is 2970293. The reversal of 2970289 is 9820792.

2970289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2970289 - 21 = 2970287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2970281) 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 15 ways as a sum of consecutive naturals, for example, 2574 + ... + 3544.

It is an arithmetic number, because the mean of its divisors is an integer number (233280).

22970289 is an apocalyptic number.

It is an amenable number.

2970289 is a deficient number, since it is larger than the sum of its proper divisors (762191).

2970289 is a wasteful number, since it uses less digits than its factorization.

2970289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 2970289 is about 1723.4526393261. The cubic root of 2970289 is about 143.7472579187.

It can be divided in two parts, 29702 and 89, that added together give a cube (29791 = 313).

The spelling of 2970289 in words is "two million, nine hundred seventy thousand, two hundred eighty-nine".

Divisors: 1 7 19 23 133 161 437 971 3059 6797 18449 22333 129143 156331 424327 2970289