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13018227425280 = 2143257211174147
BaseRepresentation
bin1011110101110000101011…
…0100100100000000000000
31201002112022122121200010200
42331130022310210000000
53201242312210102110
643404254025325200
72512351545224100
oct275341264440000
951075278550120
1013018227425280
114169aa9aa7130
12156302a036800
137357c905606c
1433012ab33200
151789799b56c0
hexbd70ad24000

13018227425280 has 4320 divisors, whose sum is σ = 63438136699392. Its totient is φ = 2431018598400.

The previous prime is 13018227425251. The next prime is 13018227425303. The reversal of 13018227425280 is 8252472281031.

13018227425280 is a `hidden beast` number, since 1 + 3 + 0 + 1 + 82 + 2 + 7 + 42 + 528 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 276983562217 + ... + 276983562263.

Almost surely, 213018227425280 is an apocalyptic number.

13018227425280 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 13018227425280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31719068349696).

13018227425280 is an abundant number, since it is smaller than the sum of its proper divisors (50419909274112).

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

13018227425280 is a wasteful number, since it uses less digits than its factorization.

13018227425280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 13018227425280 in words is "thirteen trillion, eighteen billion, two hundred twenty-seven million, four hundred twenty-five thousand, two hundred eighty".