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2085139 = 71392143
BaseRepresentation
bin111111101000100010011
310220221021101
413331010103
51013211024
6112405231
723503060
oct7750423
93827241
102085139
1111a4661
12846817
13580114
143c3c67
152b2c44
hex1fd113

2085139 has 8 divisors (see below), whose sum is σ = 2401280. Its totient is φ = 1773576.

The previous prime is 2085133. The next prime is 2085143. The reversal of 2085139 is 9315802.

2085139 = T99 + T100 + ... + T237.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2085139 - 23 = 2085131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2085131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99 + ... + 2044.

It is an arithmetic number, because the mean of its divisors is an integer number (300160).

22085139 is an apocalyptic number.

2085139 is a deficient number, since it is larger than the sum of its proper divisors (316141).

2085139 is a wasteful number, since it uses less digits than its factorization.

2085139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2085139 is about 1444.0010387808. The cubic root of 2085139 is about 127.7551267277.

The spelling of 2085139 in words is "two million, eighty-five thousand, one hundred thirty-nine".

Divisors: 1 7 139 973 2143 15001 297877 2085139