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136767241 = 1310520557
BaseRepresentation
bin10000010011011…
…10011100001001
3100112100111101101
420021232130021
5240003022431
621323221401
73250334212
oct1011563411
9315314341
10136767241
1170224286
1239977861
1322447a80
1414242409
15c018961
hex826e709

136767241 has 4 divisors (see below), whose sum is σ = 147287812. Its totient is φ = 126246672.

The previous prime is 136767233. The next prime is 136767271. The reversal of 136767241 is 142767631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142767631 = 151945481.

It can be written as a sum of positive squares in 2 ways, for example, as 43837641 + 92929600 = 6621^2 + 9640^2 .

It is a cyclic number.

It is not a de Polignac number, because 136767241 - 23 = 136767233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136767241.

It is not an unprimeable number, because it can be changed into a prime (136767271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5260266 + ... + 5260291.

It is an arithmetic number, because the mean of its divisors is an integer number (36821953).

Almost surely, 2136767241 is an apocalyptic number.

It is an amenable number.

136767241 is a deficient number, since it is larger than the sum of its proper divisors (10520571).

136767241 is a wasteful number, since it uses less digits than its factorization.

136767241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10520570.

The product of its digits is 42336, while the sum is 37.

The square root of 136767241 is about 11694.7527122210. The cubic root of 136767241 is about 515.2215604946.

The spelling of 136767241 in words is "one hundred thirty-six million, seven hundred sixty-seven thousand, two hundred forty-one".

Divisors: 1 13 10520557 136767241