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13657230452005 = 57631618393953
BaseRepresentation
bin1100011010111101001001…
…0111101010010100100101
31210100121200212112202220021
43012233102113222110211
53242230001443431010
645014013422035141
72606462621306230
oct306572227522445
953317625482807
1013657230452005
114395aa9601a08
121646a42a18ab1
13780b433484ba
14353028dc4417
1518a3c8a358da
hexc6bd25ea525

13657230452005 has 16 divisors (see below), whose sum is σ = 18759598988544. Its totient is φ = 9350116554240.

The previous prime is 13657230451979. The next prime is 13657230452057. The reversal of 13657230452005 is 50025403275631.

It is a happy number.

It is not a de Polignac number, because 13657230452005 - 29 = 13657230451493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309174892 + ... + 309219061.

It is an arithmetic number, because the mean of its divisors is an integer number (1172474936784).

Almost surely, 213657230452005 is an apocalyptic number.

It is an amenable number.

13657230452005 is a deficient number, since it is larger than the sum of its proper divisors (5102368536539).

13657230452005 is an equidigital number, since it uses as much as digits as its factorization.

13657230452005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618394596.

The product of its (nonzero) digits is 756000, while the sum is 43.

The spelling of 13657230452005 in words is "thirteen trillion, six hundred fifty-seven billion, two hundred thirty million, four hundred fifty-two thousand, five".

Divisors: 1 5 7 35 631 3155 4417 22085 618393953 3091969765 4328757671 21643788355 390206584343 1951032921715 2731446090401 13657230452005