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139302 = 23271109
BaseRepresentation
bin100010000000100110
321002002100
4202000212
513424202
62552530
71120062
oct420046
9232070
10139302
1195729
1268746
134b537
1438aa2
152b41c
hex22026

139302 has 24 divisors (see below), whose sum is σ = 308880. Its totient is φ = 45360.

The previous prime is 139301. The next prime is 139303. The reversal of 139302 is 203931.

It is an interprime number because it is at equal distance from previous prime (139301) and next prime (139303).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1224 + ... + 1332.

It is an arithmetic number, because the mean of its divisors is an integer number (12870).

2139302 is an apocalyptic number.

139302 is an abundant number, since it is smaller than the sum of its proper divisors (169578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139302 is a wasteful number, since it uses less digits than its factorization.

139302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 139302 is about 373.2318314399. The cubic root of 139302 is about 51.8385029003.

It can be divided in two parts, 139 and 302, that added together give a square (441 = 212).

The spelling of 139302 in words is "one hundred thirty-nine thousand, three hundred two".

Divisors: 1 2 3 6 9 18 71 109 142 213 218 327 426 639 654 981 1278 1962 7739 15478 23217 46434 69651 139302