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136020 = 22352267
BaseRepresentation
bin100001001101010100
320220120210
4201031110
513323040
62525420
71104363
oct411524
9226523
10136020
1193215
1266870
1349bb1
14377da
152a480
hex21354

136020 has 24 divisors (see below), whose sum is σ = 381024. Its totient is φ = 36256.

The previous prime is 136013. The next prime is 136027. The reversal of 136020 is 20631.

It is an interprime number because it is at equal distance from previous prime (136013) and next prime (136027).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 135987 and 136005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136027) by changing a digit.

136020 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 7 ways as a sum of consecutive naturals, for example, 1074 + ... + 1193.

It is an arithmetic number, because the mean of its divisors is an integer number (15876).

2136020 is an apocalyptic number.

136020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136020 is an abundant number, since it is smaller than the sum of its proper divisors (245004).

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

136020 is a wasteful number, since it uses less digits than its factorization.

136020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279 (or 2277 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 136020 is about 368.8088936021. The cubic root of 136020 is about 51.4281525539.

Adding to 136020 its reverse (20631), we get a palindrome (156651).

The spelling of 136020 in words is "one hundred thirty-six thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2267 4534 6801 9068 11335 13602 22670 27204 34005 45340 68010 136020