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2885139 = 3531383
BaseRepresentation
bin1011000000011000010011
312102120200000
423000120103
51214311024
6141501043
733344325
oct13003023
95376600
102885139
1116a0714
12b71783
137a02aa
14551615
153becc9
hex2c0613

2885139 has 24 divisors (see below), whose sum is σ = 4472832. Its totient is φ = 1856520.

The previous prime is 2885119. The next prime is 2885173. The reversal of 2885139 is 9315882.

It is not a de Polignac number, because 2885139 - 25 = 2885107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2885119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7342 + ... + 7724.

It is an arithmetic number, because the mean of its divisors is an integer number (186368).

22885139 is an apocalyptic number.

2885139 is a deficient number, since it is larger than the sum of its proper divisors (1587693).

2885139 is an equidigital number, since it uses as much as digits as its factorization.

2885139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 417 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 2885139 is about 1698.5696924177. The cubic root of 2885139 is about 142.3603063154.

The spelling of 2885139 in words is "two million, eight hundred eighty-five thousand, one hundred thirty-nine".

Divisors: 1 3 9 27 31 81 93 243 279 383 837 1149 2511 3447 7533 10341 11873 31023 35619 93069 106857 320571 961713 2885139