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136286997 = 37114571291
BaseRepresentation
bin10000001111110…
…01001100010101
3100111110002121120
420013321030111
5234342140442
621305034153
73243264120
oct1007711425
9314402546
10136286997
116aa26490
1239785959
132230a2c2
14141593b7
15be714ec
hex81f9315

136286997 has 32 divisors (see below), whose sum is σ = 227226624. Its totient is φ = 70588800.

The previous prime is 136286987. The next prime is 136287023. The reversal of 136286997 is 799682631.

It is not a de Polignac number, because 136286997 - 27 = 136286869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136286987) 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 31 ways as a sum of consecutive naturals, for example, 104922 + ... + 106212.

It is an arithmetic number, because the mean of its divisors is an integer number (7100832).

Almost surely, 2136286997 is an apocalyptic number.

It is an amenable number.

136286997 is a deficient number, since it is larger than the sum of its proper divisors (90939627).

136286997 is a wasteful number, since it uses less digits than its factorization.

136286997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769.

The product of its digits is 979776, while the sum is 51.

The square root of 136286997 is about 11674.2021997223. The cubic root of 136286997 is about 514.6178042192.

The spelling of 136286997 in words is "one hundred thirty-six million, two hundred eighty-six thousand, nine hundred ninety-seven".

Divisors: 1 3 7 11 21 33 77 231 457 1291 1371 3199 3873 5027 9037 9597 14201 15081 27111 35189 42603 99407 105567 298221 589987 1769961 4129909 6489857 12389727 19469571 45428999 136286997