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139484 = 2234871
BaseRepresentation
bin100010000011011100
321002100002
4202003130
513430414
62553432
71120442
oct420334
9232302
10139484
1195884
1268878
134b647
1438b92
152b4de
hex220dc

139484 has 6 divisors (see below), whose sum is σ = 244104. Its totient is φ = 69740.

The previous prime is 139483. The next prime is 139487. The reversal of 139484 is 484931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17432 + ... + 17439.

It is an arithmetic number, because the mean of its divisors is an integer number (40684).

2139484 is an apocalyptic number.

It is an amenable number.

139484 is a deficient number, since it is larger than the sum of its proper divisors (104620).

139484 is a wasteful number, since it uses less digits than its factorization.

139484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34875 (or 34873 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 139484 is about 373.4755681434. The cubic root of 139484 is about 51.8610689838.

It can be divided in two parts, 139 and 484, that multiplied together give a palindrome (67276).

The spelling of 139484 in words is "one hundred thirty-nine thousand, four hundred eighty-four".

Divisors: 1 2 4 34871 69742 139484