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13888262085880 = 2357213737466647
BaseRepresentation
bin1100101000011001110011…
…1011011001110011111000
31211011201000212022210101211
43022012130323121303320
53310021130043222010
645312102435452504
72632252036635100
oct312063473316370
954151025283354
1013888262085880
114474a84976a16
12168377aa57134
137998716944c0
143602a4534200
151913eb46308a
hexca19ced9cf8

13888262085880 has 192 divisors, whose sum is σ = 39682844792640. Its totient is φ = 4335194400768.

The previous prime is 13888262085871. The next prime is 13888262085881. The reversal of 13888262085880 is 8858026288831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13888262085881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1873284 + ... + 5593363.

It is an arithmetic number, because the mean of its divisors is an integer number (206681483295).

Almost surely, 213888262085880 is an apocalyptic number.

13888262085880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13888262085880 is an abundant number, since it is smaller than the sum of its proper divisors (25794582706760).

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

13888262085880 is a wasteful number, since it uses less digits than its factorization.

13888262085880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7466758 (or 7466747 counting only the distinct ones).

The product of its (nonzero) digits is 94371840, while the sum is 67.

The spelling of 13888262085880 in words is "thirteen trillion, eight hundred eighty-eight billion, two hundred sixty-two million, eighty-five thousand, eight hundred eighty".