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162540933231 = 3232355665699
BaseRepresentation
bin1001011101100000110…
…0011101000001101111
3120112112202102221010010
42113120030131001233
510130340434330411
6202400440144303
714512626064545
oct2273014350157
9515482387103
10162540933231
1162a2a134986
1227602768093
13124347cb601
147c1d17bd95
154364aa17a6
hex25d831d06f

162540933231 has 8 divisors (see below), whose sum is σ = 226143907200. Its totient is φ = 103649290712.

The previous prime is 162540933227. The next prime is 162540933281. The reversal of 162540933231 is 132339045261.

162540933231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 162540933231 - 22 = 162540933227 is a prime.

It is a super-2 number, since 2×1625409332312 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 162540933231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162540933281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1177832781 + ... + 1177832918.

It is an arithmetic number, because the mean of its divisors is an integer number (28267988400).

Almost surely, 2162540933231 is an apocalyptic number.

162540933231 is a deficient number, since it is larger than the sum of its proper divisors (63602973969).

162540933231 is a wasteful number, since it uses less digits than its factorization.

162540933231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355665725.

The product of its (nonzero) digits is 116640, while the sum is 39.

Adding to 162540933231 its reverse (132339045261), we get a palindrome (294879978492).

The spelling of 162540933231 in words is "one hundred sixty-two billion, five hundred forty million, nine hundred thirty-three thousand, two hundred thirty-one".

Divisors: 1 3 23 69 2355665699 7066997097 54180311077 162540933231