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136245445 = 5723169249
BaseRepresentation
bin10000001111011…
…11000011000101
3100111100222121121
420013233003011
5234334323240
621304113541
73243032020
oct1007570305
9314328547
10136245445
116a9a8246
12397658b1
13222c440b
14141481b7
15be6404a
hex81ef0c5

136245445 has 16 divisors (see below), whose sum is σ = 194976000. Its totient is φ = 89362944.

The previous prime is 136245427. The next prime is 136245449. The reversal of 136245445 is 544542631.

It is a cyclic number.

It is not a de Polignac number, because 136245445 - 211 = 136243397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136245445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136245449) 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 15 ways as a sum of consecutive naturals, for example, 83820 + ... + 85429.

It is an arithmetic number, because the mean of its divisors is an integer number (12186000).

Almost surely, 2136245445 is an apocalyptic number.

It is an amenable number.

136245445 is a deficient number, since it is larger than the sum of its proper divisors (58730555).

136245445 is a wasteful number, since it uses less digits than its factorization.

136245445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169284.

The product of its digits is 57600, while the sum is 34.

The square root of 136245445 is about 11672.4224135352. The cubic root of 136245445 is about 514.5654989785.

The spelling of 136245445 in words is "one hundred thirty-six million, two hundred forty-five thousand, four hundred forty-five".

Divisors: 1 5 7 23 35 115 161 805 169249 846245 1184743 3892727 5923715 19463635 27249089 136245445