Search a number
-
+
136838280 = 23351140319
BaseRepresentation
bin10000010011111…
…11110010001000
3100112111002211110
420021333302020
5240012311110
621324530320
73251051265
oct1011776210
9315432743
10136838280
1170272697
12399b09a0
13224711c7
141426026c
15c02ea20
hex827fc88

136838280 has 32 divisors (see below), whose sum is σ = 410515200. Its totient is φ = 36490176.

The previous prime is 136838257. The next prime is 136838333. The reversal of 136838280 is 82838631.

It is a super-3 number, since 3×1368382803 (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 570040 + ... + 570279.

It is an arithmetic number, because the mean of its divisors is an integer number (12828600).

Almost surely, 2136838280 is an apocalyptic number.

136838280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136838280 is an abundant number, since it is smaller than the sum of its proper divisors (273676920).

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

136838280 is a wasteful number, since it uses less digits than its factorization.

136838280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140333 (or 1140329 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 136838280 is about 11697.7895347796. The cubic root of 136838280 is about 515.3107497112.

The spelling of 136838280 in words is "one hundred thirty-six million, eight hundred thirty-eight thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 1140319 2280638 3420957 4561276 5701595 6841914 9122552 11403190 13683828 17104785 22806380 27367656 34209570 45612760 68419140 136838280