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139846 = 2721427
BaseRepresentation
bin100010001001000110
321002211111
4202021012
513433341
62555234
71121500
oct421106
9232744
10139846
1196083
1268b1a
134b865
1438d70
152b681
hex22246

139846 has 12 divisors (see below), whose sum is σ = 244188. Its totient is φ = 59892.

The previous prime is 139837. The next prime is 139861. The reversal of 139846 is 648931.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

139846 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 616 + ... + 811.

It is an arithmetic number, because the mean of its divisors is an integer number (20349).

2139846 is an apocalyptic number.

139846 is a deficient number, since it is larger than the sum of its proper divisors (104342).

139846 is a wasteful number, since it uses less digits than its factorization.

139846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443 (or 1436 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 139846 is about 373.9598908974. The cubic root of 139846 is about 51.9058948882.

It can be divided in two parts, 1398 and 46, that added together give a square (1444 = 382).

The spelling of 139846 in words is "one hundred thirty-nine thousand, eight hundred forty-six".

Divisors: 1 2 7 14 49 98 1427 2854 9989 19978 69923 139846