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139102 = 2157443
BaseRepresentation
bin100001111101011110
321001210221
4201331132
513422402
62551554
71116355
oct417536
9231727
10139102
1195567
12685ba
134b412
143899c
152b337
hex21f5e

139102 has 8 divisors (see below), whose sum is σ = 210456. Its totient is φ = 68952.

The previous prime is 139091. The next prime is 139109. The reversal of 139102 is 201931.

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

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139109) by changing a digit.

139102 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 93 + ... + 535.

It is an arithmetic number, because the mean of its divisors is an integer number (26307).

2139102 is an apocalyptic number.

139102 is a deficient number, since it is larger than the sum of its proper divisors (71354).

139102 is a wasteful number, since it uses less digits than its factorization.

139102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 139102 is about 372.9638052144. The cubic root of 139102 is about 51.8136823275.

The spelling of 139102 in words is "one hundred thirty-nine thousand, one hundred two".

Divisors: 1 2 157 314 443 886 69551 139102