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13111914394932 = 223197313930718461
BaseRepresentation
bin1011111011001101101011…
…1111111111010100110100
31201102111010212011211210120
42332303122333333110310
53204311200041114212
643515310314251540
72522206314304233
oct276633277772464
951374125154716
1013111914394932
1141a5805938081
121579215726bb0
137415a9988c92
1433489757cb1a
1517b10e88288c
hexbecdafff534

13111914394932 has 192 divisors, whose sum is σ = 32989614873600. Its totient is φ = 4041077713920.

The previous prime is 13111914394921. The next prime is 13111914394933. The reversal of 13111914394932 is 23949341911131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111914394933) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 710240182 + ... + 710258642.

It is an arithmetic number, because the mean of its divisors is an integer number (171820910800).

Almost surely, 213111914394932 is an apocalyptic number.

13111914394932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13111914394932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16494807436800).

13111914394932 is an abundant number, since it is smaller than the sum of its proper divisors (19877700478668).

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

13111914394932 is a wasteful number, since it uses less digits than its factorization.

13111914394932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19006 (or 19004 counting only the distinct ones).

The product of its digits is 629856, while the sum is 51.

The spelling of 13111914394932 in words is "thirteen trillion, one hundred eleven billion, nine hundred fourteen million, three hundred ninety-four thousand, nine hundred thirty-two".