Search a number
-
+
136197620 = 225132512087
BaseRepresentation
bin10000001111000…
…11010111110100
3100111021120000022
420013203113310
5234331310440
621303104312
73242442416
oct1007432764
9314246008
10136197620
116a975319
1239742098
13222a8710
14141349b6
15be54cb5
hex81e35f4

136197620 has 48 divisors (see below), whose sum is σ = 309391488. Its totient is φ = 50064000.

The previous prime is 136197619. The next prime is 136197661. The reversal of 136197620 is 26791631.

136197620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64217 + ... + 66303.

It is an arithmetic number, because the mean of its divisors is an integer number (6445656).

Almost surely, 2136197620 is an apocalyptic number.

136197620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136197620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154695744).

136197620 is an abundant number, since it is smaller than the sum of its proper divisors (173193868).

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

136197620 is a wasteful number, since it uses less digits than its factorization.

136197620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2360 (or 2358 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 136197620 is about 11670.3736015605. The cubic root of 136197620 is about 514.5052841826.

The spelling of 136197620 in words is "one hundred thirty-six million, one hundred ninety-seven thousand, six hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 251 260 502 1004 1255 2087 2510 3263 4174 5020 6526 8348 10435 13052 16315 20870 27131 32630 41740 54262 65260 108524 135655 271310 523837 542620 1047674 2095348 2619185 5238370 6809881 10476740 13619762 27239524 34049405 68098810 136197620