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13203727678080 = 273451573316189
BaseRepresentation
bin1100000000100011101101…
…1111110111101010000000
31201202021010111001212210000
43000020323133313222000
53212312213241144310
644025413031440000
72531636452320462
oct300107337675200
951667114055700
1013203727678080
114230740065685
121592b79826000
1374a14c36c364
143390c7210132
1517d6d4edd4c0
hexc023b7f7a80

13203727678080 has 320 divisors, whose sum is σ = 47158805449800. Its totient is φ = 3520552771584.

The previous prime is 13203727678067. The next prime is 13203727678087. The reversal of 13203727678080 is 8087672730231.

It is a happy number.

13203727678080 is a `hidden beast` number, since 13 + 203 + 7 + 276 + 7 + 80 + 80 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7681190078016 + 5522537600064 = 2771496^2 + 2350008^2 .

It is a tau number, because it is divible by the number of its divisors (320).

It is a super-2 number, since 2×132037276780802 (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (13203727678087) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 815590626 + ... + 815606814.

Almost surely, 213203727678080 is an apocalyptic number.

13203727678080 is a gapful number since it is divisible by the number (10) 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 13203727678080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23579402724900).

13203727678080 is an abundant number, since it is smaller than the sum of its proper divisors (33955077771720).

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

13203727678080 is a wasteful number, since it uses less digits than its factorization.

13203727678080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31953 (or 31932 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 54.

The spelling of 13203727678080 in words is "thirteen trillion, two hundred three billion, seven hundred twenty-seven million, six hundred seventy-eight thousand, eighty".