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12050474156 = 227261482011
BaseRepresentation
bin10110011100100001…
…11010010010101100
31011002211002111212122
423032100322102230
5144134410133111
65311431252112
7604423224500
oct131620722254
934084074778
1012050474156
1151241a6656
12240381a038
1311a07579a6
148245da300
154a7de0cdb
hex2ce43a4ac

12050474156 has 18 divisors (see below), whose sum is σ = 24531322788. Its totient is φ = 5164488840.

The previous prime is 12050474143. The next prime is 12050474159. The reversal of 12050474156 is 65147405021.

It is not an unprimeable number, because it can be changed into a prime (12050474159) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30740810 + ... + 30741201.

It is an arithmetic number, because the mean of its divisors is an integer number (1362851266).

Almost surely, 212050474156 is an apocalyptic number.

It is an amenable number.

12050474156 is an abundant number, since it is smaller than the sum of its proper divisors (12480848632).

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

12050474156 is a wasteful number, since it uses less digits than its factorization.

12050474156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61482029 (or 61482020 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

Adding to 12050474156 its reverse (65147405021), we get a palindrome (77197879177).

The spelling of 12050474156 in words is "twelve billion, fifty million, four hundred seventy-four thousand, one hundred fifty-six".

Divisors: 1 2 4 7 14 28 49 98 196 61482011 122964022 245928044 430374077 860748154 1721496308 3012618539 6025237078 12050474156