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1030139 = 11711319
BaseRepresentation
bin11111011011111111011
31221100002022
43323133323
5230431024
634025055
711520215
oct3733773
91840068
101030139
11643a60
1241818b
132a0b66
141cb5b5
1515535e
hexfb7fb

1030139 has 8 divisors (see below), whose sum is σ = 1140480. Its totient is φ = 922600.

The previous prime is 1030121. The next prime is 1030153. The reversal of 1030139 is 9310301.

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

It is a cyclic number.

It is not a de Polignac number, because 1030139 - 28 = 1029883 is a prime.

It is a super-2 number, since 2×10301392 = 2122372718642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122 + ... + 1440.

It is an arithmetic number, because the mean of its divisors is an integer number (142560).

21030139 is an apocalyptic number.

1030139 is a deficient number, since it is larger than the sum of its proper divisors (110341).

1030139 is a wasteful number, since it uses less digits than its factorization.

1030139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1030139 is about 1014.9576345838. The cubic root of 1030139 is about 100.9947061239.

The spelling of 1030139 in words is "one million, thirty thousand, one hundred thirty-nine".

Divisors: 1 11 71 781 1319 14509 93649 1030139