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136752013 = 2574091301
BaseRepresentation
bin10000010011010…
…10101110001101
3100112022201111101
420021222232031
5240002031023
621323023101
73250241626
oct1011525615
9315281441
10136752013
11702138a2
123996aa91
1322440b68
141423aa4d
15c0141ad
hex826ab8d

136752013 has 8 divisors (see below), whose sum is σ = 137725560. Its totient is φ = 135782400.

The previous prime is 136751983. The next prime is 136752017. The reversal of 136752013 is 310257631.

It can be written as a sum of positive squares in 4 ways, for example, as 42797764 + 93954249 = 6542^2 + 9693^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136752013 - 25 = 136751981 is a prime.

It is a super-2 number, since 2×1367520132 = 37402226119104338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136752017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104463 + ... + 105763.

It is an arithmetic number, because the mean of its divisors is an integer number (17215695).

Almost surely, 2136752013 is an apocalyptic number.

It is an amenable number.

136752013 is a deficient number, since it is larger than the sum of its proper divisors (973547).

136752013 is a wasteful number, since it uses less digits than its factorization.

136752013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 136752013 is about 11694.1016328746. The cubic root of 136752013 is about 515.2024377742.

It can be divided in two parts, 13675201 and 3, that added together give a square (13675204 = 36982).

The spelling of 136752013 in words is "one hundred thirty-six million, seven hundred fifty-two thousand, thirteen".

Divisors: 1 257 409 1301 105113 334357 532109 136752013