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138110 = 2571973
BaseRepresentation
bin100001101101111110
321000110012
4201231332
513404420
62543222
71113440
oct415576
9230405
10138110
1194845
1267b12
134ab2b
1438490
152adc5
hex21b7e

138110 has 16 divisors (see below), whose sum is σ = 284256. Its totient is φ = 47328.

The previous prime is 138107. The next prime is 138113. The reversal of 138110 is 11831.

138110 = 452 + 462 + ... + 792.

It is an interprime number because it is at equal distance from previous prime (138107) and next prime (138113).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138113) 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, 917 + ... + 1056.

It is an arithmetic number, because the mean of its divisors is an integer number (17766).

2138110 is an apocalyptic number.

138110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138110 is an abundant number, since it is smaller than the sum of its proper divisors (146146).

It is a weird number, because it is abundant, but not a pseudoperfect number.

138110 is a wasteful number, since it uses less digits than its factorization.

138110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 138110 is about 371.6315379512. The cubic root of 138110 is about 51.6902193461.

Adding to 138110 its reverse (11831), we get a palindrome (149941).

The spelling of 138110 in words is "one hundred thirty-eight thousand, one hundred ten".

Divisors: 1 2 5 7 10 14 35 70 1973 3946 9865 13811 19730 27622 69055 138110