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13207007712 = 253137572997
BaseRepresentation
bin11000100110011001…
…01111000111100000
31021002102022111122210
430103030233013200
5204021443221322
610022304002120
7645165466443
oct142314570740
937072274583
1013207007712
115668014408
122687000340
131326240882
148d405365a
155246e270c
hex31332f1e0

13207007712 has 24 divisors (see below), whose sum is σ = 34668395496. Its totient is φ = 4402335872.

The previous prime is 13207007707. The next prime is 13207007713. The reversal of 13207007712 is 21770070231.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 13207007712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13207007713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68786403 + ... + 68786594.

It is an arithmetic number, because the mean of its divisors is an integer number (1444516479).

Almost surely, 213207007712 is an apocalyptic number.

13207007712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13207007712 is an abundant number, since it is smaller than the sum of its proper divisors (21461387784).

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

13207007712 is a wasteful number, since it uses less digits than its factorization.

13207007712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137573010 (or 137573002 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 30.

Adding to 13207007712 its reverse (21770070231), we get a palindrome (34977077943).

The spelling of 13207007712 in words is "thirteen billion, two hundred seven million, seven thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 137572997 275145994 412718991 550291988 825437982 1100583976 1650875964 2201167952 3301751928 4402335904 6603503856 13207007712