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138201 = 376581
BaseRepresentation
bin100001101111011001
321000120120
4201233121
513410301
62543453
71113630
oct415731
9230516
10138201
1194918
1267b89
134ab9b
1438517
152ae36
hex21bd9

138201 has 8 divisors (see below), whose sum is σ = 210624. Its totient is φ = 78960.

The previous prime is 138197. The next prime is 138209. The reversal of 138201 is 102831.

It is a happy number.

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

It is not a de Polignac number, because 138201 - 22 = 138197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3270 + ... + 3311.

It is an arithmetic number, because the mean of its divisors is an integer number (26328).

2138201 is an apocalyptic number.

It is an amenable number.

138201 is a deficient number, since it is larger than the sum of its proper divisors (72423).

138201 is an equidigital number, since it uses as much as digits as its factorization.

138201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6591.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 138201 is about 371.7539508869. The cubic root of 138201 is about 51.7015696640.

The spelling of 138201 in words is "one hundred thirty-eight thousand, two hundred one".

Divisors: 1 3 7 21 6581 19743 46067 138201