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136830105 = 32523731811
BaseRepresentation
bin10000010011111…
…01110010011001
3100112110200121200
420021331302121
5240012030410
621324424413
73251015406
oct1011756231
9315420550
10136830105
1170267535
12399a8109
132246a579
141425b2ad
15c02c3c0
hex827dc99

136830105 has 48 divisors (see below), whose sum is σ = 251012736. Its totient is φ = 68808960.

The previous prime is 136830103. The next prime is 136830119. The reversal of 136830105 is 501038631.

136830105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 136830105 - 21 = 136830103 is a prime.

It is a super-2 number, since 2×1368301052 = 37444955268622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136830103) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74650 + ... + 76460.

It is an arithmetic number, because the mean of its divisors is an integer number (5229432).

Almost surely, 2136830105 is an apocalyptic number.

136830105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136830105 is a deficient number, since it is larger than the sum of its proper divisors (114182631).

136830105 is a wasteful number, since it uses less digits than its factorization.

136830105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918 (or 1915 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 136830105 is about 11697.4401045699. The cubic root of 136830105 is about 515.3004875992.

Adding to 136830105 its reverse (501038631), we get a palindrome (637868736).

The spelling of 136830105 in words is "one hundred thirty-six million, eight hundred thirty thousand, one hundred five".

Divisors: 1 3 5 9 15 23 45 69 73 115 207 219 345 365 657 1035 1095 1679 1811 3285 5037 5433 8395 9055 15111 16299 25185 27165 41653 75555 81495 124959 132203 208265 374877 396609 624795 661015 1189827 1874385 1983045 3040669 5949135 9122007 15203345 27366021 45610035 136830105