Search a number
-
+
136128030 = 23523296803
BaseRepresentation
bin10000001110100…
…10011000011110
3100111011000112220
420013102120132
5234322044110
621301410210
73242032503
oct1007223036
9314130486
10136128030
116a928005
1239709966
1322282b3c
14141174aa
15be3e370
hex81d261e

136128030 has 64 divisors (see below), whose sum is σ = 352719360. Its totient is φ = 33520256.

The previous prime is 136127963. The next prime is 136128071. The reversal of 136128030 is 30821631.

It is a super-3 number, since 3×1361280303 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16609 + ... + 23411.

It is an arithmetic number, because the mean of its divisors is an integer number (5511240).

Almost surely, 2136128030 is an apocalyptic number.

136128030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 136128030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176359680).

136128030 is an abundant number, since it is smaller than the sum of its proper divisors (216591330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136128030 is a wasteful number, since it uses less digits than its factorization.

136128030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6865.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 136128030 is about 11667.3917393735. The cubic root of 136128030 is about 514.4176406478.

Adding to 136128030 its reverse (30821631), we get a palindrome (166949661).

The spelling of 136128030 in words is "one hundred thirty-six million, one hundred twenty-eight thousand, thirty".

Divisors: 1 2 3 5 6 10 15 23 29 30 46 58 69 87 115 138 145 174 230 290 345 435 667 690 870 1334 2001 3335 4002 6670 6803 10005 13606 20010 20409 34015 40818 68030 102045 156469 197287 204090 312938 394574 469407 591861 782345 938814 986435 1183722 1564690 1972870 2347035 2959305 4537601 4694070 5918610 9075202 13612803 22688005 27225606 45376010 68064015 136128030