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231312122210032 = 2429498517504763
BaseRepresentation
bin110100100110000010001100…
…111000000110011011110000
31010100000020000111202100021121
4310212002030320012123300
5220304304211241210112
62135543153313232024
766502515010536553
oct6446021470063360
91110006014670247
10231312122210032
1167780a13769396
1221b39a09862614
139c0b841078bb6
1441197d04aa69a
151bb1e5c0ee407
hexd2608ce066f0

231312122210032 has 20 divisors (see below), whose sum is σ = 463621279430520. Its totient is φ = 111667921066688.

The previous prime is 231312122210009. The next prime is 231312122210129. The reversal of 231312122210032 is 230012221213132.

It is a junction number, because it is equal to n+sod(n) for n = 231312122209979 and 231312122210006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249258751918 + ... + 249258752845.

It is an arithmetic number, because the mean of its divisors is an integer number (23181063971526).

Almost surely, 2231312122210032 is an apocalyptic number.

It is an amenable number.

231312122210032 is an abundant number, since it is smaller than the sum of its proper divisors (232309157220488).

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

231312122210032 is a wasteful number, since it uses less digits than its factorization.

231312122210032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498517504800 (or 498517504794 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 231312122210032 its reverse (230012221213132), we get a palindrome (461324343423164).

The spelling of 231312122210032 in words is "two hundred thirty-one trillion, three hundred twelve billion, one hundred twenty-two million, two hundred ten thousand, thirty-two".

Divisors: 1 2 4 8 16 29 58 116 232 464 498517504763 997035009526 1994070019052 3988140038104 7976280076208 14457007638127 28914015276254 57828030552508 115656061105016 231312122210032