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13126451312 = 241363107939
BaseRepresentation
bin11000011100110010…
…11100000001110000
31020212210201211001102
430032121130001300
5203340332420222
610010305223532
7643166665232
oct141631340160
936783654042
1013126451312
1156265a3177
122664031ba8
131312647170
148c7484252
1551c5cdd92
hex30e65c070

13126451312 has 20 divisors (see below), whose sum is σ = 27388845960. Its totient is φ = 6058362048.

The previous prime is 13126451297. The next prime is 13126451339. The reversal of 13126451312 is 21315462131.

It is a super-3 number, since 3×131264513123 (a number of 31 digits) contains 333 as substring.

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, 31553762 + ... + 31554177.

It is an arithmetic number, because the mean of its divisors is an integer number (1369442298).

Almost surely, 213126451312 is an apocalyptic number.

It is an amenable number.

13126451312 is an abundant number, since it is smaller than the sum of its proper divisors (14262394648).

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

13126451312 is a wasteful number, since it uses less digits than its factorization.

13126451312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63107960 (or 63107954 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The spelling of 13126451312 in words is "thirteen billion, one hundred twenty-six million, four hundred fifty-one thousand, three hundred twelve".

Divisors: 1 2 4 8 13 16 26 52 104 208 63107939 126215878 252431756 504863512 820403207 1009727024 1640806414 3281612828 6563225656 13126451312