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12611372732 = 2271388332443
BaseRepresentation
bin10111011111011001…
…00100011010111100
31012112220112010001222
423233230210122330
5201312002411412
65443225252512
7624343620350
oct135754443274
935486463058
1012611372732
115391877aa2
12253b634138
13125ca12a3a
14878cc5460
154dc288072
hex2efb246bc

12611372732 has 24 divisors (see below), whose sum is σ = 25225339776. Its totient is φ = 5404318128.

The previous prime is 12611372689. The next prime is 12611372747. The reversal of 12611372732 is 23727311621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12611372692 and 12611372701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372503 + ... + 404945.

It is an arithmetic number, because the mean of its divisors is an integer number (1051055824).

Almost surely, 212611372732 is an apocalyptic number.

It is an amenable number.

12611372732 is an abundant number, since it is smaller than the sum of its proper divisors (12613967044).

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

12611372732 is a wasteful number, since it uses less digits than its factorization.

12611372732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46337 (or 46335 counting only the distinct ones).

The product of its digits is 21168, while the sum is 35.

The spelling of 12611372732 in words is "twelve billion, six hundred eleven million, three hundred seventy-two thousand, seven hundred thirty-two".

Divisors: 1 2 4 7 14 28 13883 27766 32443 55532 64886 97181 129772 194362 227101 388724 454202 908404 450406169 900812338 1801624676 3152843183 6305686366 12611372732