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551600139 = 3172636217
BaseRepresentation
bin100000111000001…
…100000000001011
31102102221012010210
4200320030000023
52112202201024
6130422412203
716445344446
oct4070140013
91372835123
10551600139
11263400392
12134891063
138a38091c
145338865d
153365c129
hex20e0c00b

551600139 has 12 divisors (see below), whose sum is σ = 781275704. Its totient is φ = 346101504.

The previous prime is 551600117. The next prime is 551600141. The reversal of 551600139 is 931006155.

It is not a de Polignac number, because 551600139 - 29 = 551599627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551610139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 317242 + ... + 318975.

Almost surely, 2551600139 is an apocalyptic number.

551600139 is a deficient number, since it is larger than the sum of its proper divisors (229675565).

551600139 is a wasteful number, since it uses less digits than its factorization.

551600139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636254 (or 636237 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 551600139 is about 23486.1691001321. The cubic root of 551600139 is about 820.1150636669.

The spelling of 551600139 in words is "five hundred fifty-one million, six hundred thousand, one hundred thirty-nine".

Divisors: 1 3 17 51 289 867 636217 1908651 10815689 32447067 183866713 551600139