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136802369 = 1131139989
BaseRepresentation
bin10000010011101…
…11000001000001
3100112102021120102
420021313001001
5240010133434
621324052145
73250541504
oct1011670101
9315367512
10136802369
1170248710
1239994055
132245aa62
141425113b
15c02407e
hex8277041

136802369 has 8 divisors (see below), whose sum is σ = 149722560. Its totient is φ = 123962800.

The previous prime is 136802311. The next prime is 136802377. The reversal of 136802369 is 963208631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-136802369 is a prime.

It is a super-2 number, since 2×1368023692 = 37429776328024322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136802399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16574 + ... + 23415.

It is an arithmetic number, because the mean of its divisors is an integer number (18715320).

Almost surely, 2136802369 is an apocalyptic number.

It is an amenable number.

136802369 is a deficient number, since it is larger than the sum of its proper divisors (12920191).

136802369 is a wasteful number, since it uses less digits than its factorization.

136802369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40311.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 136802369 is about 11696.2544859455. The cubic root of 136802369 is about 515.2656674351.

The spelling of 136802369 in words is "one hundred thirty-six million, eight hundred two thousand, three hundred sixty-nine".

Divisors: 1 11 311 3421 39989 439879 12436579 136802369