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136406541 = 3319715121
BaseRepresentation
bin10000010000101…
…10011000001101
3100111200011121010
420020112120031
5234410002131
621311355433
73244302465
oct1010263015
9314604533
10136406541
116aaa8287
1239822b79
132234c83b
141418aba5
15be96b46
hex821660d

136406541 has 16 divisors (see below), whose sum is σ = 189690368. Its totient is φ = 87091200.

The previous prime is 136406539. The next prime is 136406551. The reversal of 136406541 is 145604631.

It is not a de Polignac number, because 136406541 - 21 = 136406539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136406499 and 136406508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136406551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1461 + ... + 16581.

It is an arithmetic number, because the mean of its divisors is an integer number (11855648).

Almost surely, 2136406541 is an apocalyptic number.

It is an amenable number.

136406541 is a deficient number, since it is larger than the sum of its proper divisors (53283827).

136406541 is a wasteful number, since it uses less digits than its factorization.

136406541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15252.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 136406541 is about 11679.3210847206. The cubic root of 136406541 is about 514.7682257406.

The spelling of 136406541 in words is "one hundred thirty-six million, four hundred six thousand, five hundred forty-one".

Divisors: 1 3 31 93 97 291 3007 9021 15121 45363 468751 1406253 1466737 4400211 45468847 136406541