Search a number
-
+
234540105 = 3547536277
BaseRepresentation
bin11011111101011…
…00110001001001
3121100022212112120
431332230301021
5440020240410
635135001453
75545362252
oct1576546111
9540285476
10234540105
111104344a8
1266669289
133978b937
1423213b29
15158cd570
hexdfacc49

234540105 has 32 divisors (see below), whose sum is σ = 390541824. Its totient is φ = 120097536.

The previous prime is 234540101. The next prime is 234540107. The reversal of 234540105 is 501045432.

It is not a de Polignac number, because 234540105 - 22 = 234540101 is a prime.

It is a super-2 number, since 2×2345401052 = 110018121706822050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (234540101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34227 + ... + 40503.

It is an arithmetic number, because the mean of its divisors is an integer number (12204432).

Almost surely, 2234540105 is an apocalyptic number.

It is an amenable number.

234540105 is a deficient number, since it is larger than the sum of its proper divisors (156001719).

234540105 is a wasteful number, since it uses less digits than its factorization.

234540105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6385.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 234540105 is about 15314.7022497990. The cubic root of 234540105 is about 616.6977611137.

Adding to 234540105 its reverse (501045432), we get a palindrome (735585537).

The spelling of 234540105 in words is "two hundred thirty-four million, five hundred forty thousand, one hundred five".

Divisors: 1 3 5 15 47 53 141 159 235 265 705 795 2491 6277 7473 12455 18831 31385 37365 94155 295019 332681 885057 998043 1475095 1663405 4425285 4990215 15636007 46908021 78180035 234540105