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136918083 = 345639361
BaseRepresentation
bin10000010100100…
…11010001000011
3100112122011022010
420022103101003
5240022334313
621330344003
73251533041
oct1012232103
9315564263
10136918083
1170317645
1239a2b003
132249b623
1414281391
15c0484c3
hex8293443

136918083 has 4 divisors (see below), whose sum is σ = 182557448. Its totient is φ = 91278720.

The previous prime is 136918073. The next prime is 136918121. The reversal of 136918083 is 380819631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 380819631 = 3126939877.

It is not a de Polignac number, because 136918083 - 225 = 103363651 is a prime.

It is a super-3 number, since 3×1369180833 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136918013) 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, 22819678 + ... + 22819683.

It is an arithmetic number, because the mean of its divisors is an integer number (45639362).

Almost surely, 2136918083 is an apocalyptic number.

136918083 is a deficient number, since it is larger than the sum of its proper divisors (45639365).

136918083 is an equidigital number, since it uses as much as digits as its factorization.

136918083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45639364.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 136918083 is about 11701.2000666598. The cubic root of 136918083 is about 515.4109052917.

The spelling of 136918083 in words is "one hundred thirty-six million, nine hundred eighteen thousand, eighty-three".

Divisors: 1 3 45639361 136918083