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139292 = 2297359
BaseRepresentation
bin100010000000011100
321002001222
4202000130
513424132
62552512
71120046
oct420034
9232058
10139292
119571a
1268738
134b52a
1438a96
152b412
hex2201c

139292 has 12 divisors (see below), whose sum is σ = 246960. Its totient is φ = 68736.

The previous prime is 139291. The next prime is 139297. The reversal of 139292 is 292931.

It is a super-2 number, since 2×1392922 = 38804522528, which contains 22 as substring.

It is a d-powerful number, because it can be written as 1 + 32 + 213 + 9 + 9 + 217 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139292.

It is not an unprimeable number, because it can be changed into a prime (139291) 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 3 ways as a sum of consecutive naturals, for example, 209 + ... + 567.

It is an arithmetic number, because the mean of its divisors is an integer number (20580).

2139292 is an apocalyptic number.

It is an amenable number.

139292 is a deficient number, since it is larger than the sum of its proper divisors (107668).

139292 is a wasteful number, since it uses less digits than its factorization.

139292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 458 counting only the distinct ones).

The product of its digits is 972, while the sum is 26.

The square root of 139292 is about 373.2184347001. The cubic root of 139292 is about 51.8372624361.

It can be divided in two parts, 13929 and 2, that added together give a palindrome (13931).

The spelling of 139292 in words is "one hundred thirty-nine thousand, two hundred ninety-two".

Divisors: 1 2 4 97 194 359 388 718 1436 34823 69646 139292