Search a number
-
+
853380138 = 231344324697
BaseRepresentation
bin110010110111011…
…000110000101010
32012110210012110210
4302313120300222
53221431131023
6220402521550
730101416512
oct6267306052
92173705423
10853380138
113a8790146
121b99662b6
13107a52980
14814a2842
154edbd593
hex32dd8c2a

853380138 has 32 divisors (see below), whose sum is σ = 1842273216. Its totient is φ = 261975168.

The previous prime is 853380133. The next prime is 853380197. The reversal of 853380138 is 831083358.

853380138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 853380096 and 853380105.

It is not an unprimeable number, because it can be changed into a prime (853380131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22206 + ... + 46902.

It is an arithmetic number, because the mean of its divisors is an integer number (57571038).

Almost surely, 2853380138 is an apocalyptic number.

853380138 is an abundant number, since it is smaller than the sum of its proper divisors (988893078).

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

853380138 is a wasteful number, since it uses less digits than its factorization.

853380138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25158.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 853380138 is about 29212.6708467405. The cubic root of 853380138 is about 948.5222224642.

The spelling of 853380138 in words is "eight hundred fifty-three million, three hundred eighty thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 13 26 39 78 443 886 1329 2658 5759 11518 17277 24697 34554 49394 74091 148182 321061 642122 963183 1926366 10940771 21881542 32822313 65644626 142230023 284460046 426690069 853380138