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12140868054 = 2371204124007
BaseRepresentation
bin10110100111010011…
…01111000111010110
31011100010011222222210
423103221233013112
5144331030234204
65324420534250
7606601450530
oct132351570726
934303158883
1012140868054
115170226957
122429b51386
1311b63b6cc3
1483260a850
154b0ce9389
hex2d3a6f1d6

12140868054 has 32 divisors (see below), whose sum is σ = 27754016256. Its totient is φ = 3468386880.

The previous prime is 12140868043. The next prime is 12140868059. The reversal of 12140868054 is 45086804121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12140868059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493719 + ... + 517725.

It is an arithmetic number, because the mean of its divisors is an integer number (867313008).

Almost surely, 212140868054 is an apocalyptic number.

12140868054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12140868054 is an abundant number, since it is smaller than the sum of its proper divisors (15613148202).

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

12140868054 is a wasteful number, since it uses less digits than its factorization.

12140868054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36060.

The product of its (nonzero) digits is 61440, while the sum is 39.

The spelling of 12140868054 in words is "twelve billion, one hundred forty million, eight hundred sixty-eight thousand, fifty-four".

Divisors: 1 2 3 6 7 14 21 42 12041 24007 24082 36123 48014 72021 72246 84287 144042 168049 168574 252861 336098 504147 505722 1008294 289068287 578136574 867204861 1734409722 2023478009 4046956018 6070434027 12140868054