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126720068253 = 359715932589
BaseRepresentation
bin111011000000100011…
…0101100101010011101
3110010002100011110010020
41312001012230222131
54034010314141003
6134114150502353
712104145544062
oct1660106545235
9403070143106
10126720068253
11498181a1939
12206863649b9
13bc464caa0c
1461c1a34c69
153469e26d53
hex1d811aca9d

126720068253 has 8 divisors (see below), whose sum is σ = 171823821600. Its totient is φ = 83048180208.

The previous prime is 126720068249. The next prime is 126720068261. The reversal of 126720068253 is 352860027621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126720068253 - 22 = 126720068249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126720068053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357966118 + ... + 357966471.

It is an arithmetic number, because the mean of its divisors is an integer number (21477977700).

Almost surely, 2126720068253 is an apocalyptic number.

It is an amenable number.

126720068253 is a deficient number, since it is larger than the sum of its proper divisors (45103753347).

126720068253 is an equidigital number, since it uses as much as digits as its factorization.

126720068253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715932651.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 126720068253 in words is "one hundred twenty-six billion, seven hundred twenty million, sixty-eight thousand, two hundred fifty-three".

Divisors: 1 3 59 177 715932589 2147797767 42240022751 126720068253