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138825883 = 783238943
BaseRepresentation
bin10000100011001…
…01000010011011
3100200020002022101
420101211002123
5241014412013
621435304231
73304000120
oct1021450233
9320202271
10138825883
11713aaa39
123a5ab077
13229b8ac1
141461a747
15c2c38dd
hex846509b

138825883 has 8 divisors (see below), whose sum is σ = 160570368. Its totient is φ = 117559464.

The previous prime is 138825853. The next prime is 138825889. The reversal of 138825883 is 388528831.

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 138825883 - 25 = 138825851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138825889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118891 + ... + 120052.

It is an arithmetic number, because the mean of its divisors is an integer number (20071296).

Almost surely, 2138825883 is an apocalyptic number.

138825883 is a deficient number, since it is larger than the sum of its proper divisors (21744485).

138825883 is an equidigital number, since it uses as much as digits as its factorization.

138825883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239033.

The product of its digits is 368640, while the sum is 46.

The square root of 138825883 is about 11782.4396030703. The cubic root of 138825883 is about 517.7937629027.

The spelling of 138825883 in words is "one hundred thirty-eight million, eight hundred twenty-five thousand, eight hundred eighty-three".

Divisors: 1 7 83 581 238943 1672601 19832269 138825883