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1027939 = 111723239
BaseRepresentation
bin11111010111101100011
31221020001211
43322331203
5230343224
634010551
711510623
oct3727543
91836054
101027939
11642340
12416a57
1329cb63
141ca883
15154894
hexfaf63

1027939 has 16 divisors (see below), whose sum is σ = 1244160. Its totient is φ = 837760.

The previous prime is 1027931. The next prime is 1027969. The reversal of 1027939 is 9397201.

It is not a de Polignac number, because 1027939 - 23 = 1027931 is a prime.

It is a Duffinian number.

1027939 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1027939.

It is not an unprimeable number, because it can be changed into a prime (1027931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4182 + ... + 4420.

It is an arithmetic number, because the mean of its divisors is an integer number (77760).

21027939 is an apocalyptic number.

1027939 is a deficient number, since it is larger than the sum of its proper divisors (216221).

1027939 is a wasteful number, since it uses less digits than its factorization.

1027939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 1027939 is about 1013.8732662419. The cubic root of 1027939 is about 100.9227589684.

The spelling of 1027939 in words is "one million, twenty-seven thousand, nine hundred thirty-nine".

Divisors: 1 11 17 23 187 239 253 391 2629 4063 4301 5497 44693 60467 93449 1027939