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5207139 = 33727551
BaseRepresentation
bin10011110111010001100011
3100210112212000
4103313101203
52313112024
6303335043
762155110
oct23672143
910715760
105207139
112a37223
1218b1483
131104162
14997907
156cccc9
hex4f7463

5207139 has 16 divisors (see below), whose sum is σ = 8816640. Its totient is φ = 2975400.

The previous prime is 5207129. The next prime is 5207149. The reversal of 5207139 is 9317025.

5207139 is a `hidden beast` number, since 520 + 7 + 139 = 666.

It is an interprime number because it is at equal distance from previous prime (5207129) and next prime (5207149).

It is not a de Polignac number, because 5207139 - 27 = 5207011 is a prime.

It is a super-3 number, since 3×52071393 (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (5207129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13587 + ... + 13964.

It is an arithmetic number, because the mean of its divisors is an integer number (551040).

Almost surely, 25207139 is an apocalyptic number.

5207139 is a deficient number, since it is larger than the sum of its proper divisors (3609501).

5207139 is a wasteful number, since it uses less digits than its factorization.

5207139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27567 (or 27561 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 5207139 is about 2281.9156426126. The cubic root of 5207139 is about 173.3270679030.

The spelling of 5207139 in words is "five million, two hundred seven thousand, one hundred thirty-nine".

Divisors: 1 3 7 9 21 27 63 189 27551 82653 192857 247959 578571 743877 1735713 5207139