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1026385054697 = 2953667784681
BaseRepresentation
bin11101110111110010101…
…00010000101111101001
310122010021112120002011002
432323321110100233221
5113304014033222242
62103303105444345
7134103531005522
oct16737124205751
93563245502132
101026385054697
11366318673022
12146b063406b5
1375a3174a042
143796a731849
151ba72d2a432
hexeef9510be9

1026385054697 has 8 divisors (see below), whose sum is σ = 1081811184840. Its totient is φ = 972294494080.

The previous prime is 1026385054691. The next prime is 1026385054753. The reversal of 1026385054697 is 7964505836201.

It can be written as a sum of positive squares in 4 ways, for example, as 381943776256 + 644441278441 = 618016^2 + 802771^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1026385054697 - 220 = 1026384006121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1026385054691) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 333890804 + ... + 333893877.

It is an arithmetic number, because the mean of its divisors is an integer number (135226398105).

It is a 1-persistent number, because it is pandigital, but 2⋅1026385054697 = 2052770109394 is not.

Almost surely, 21026385054697 is an apocalyptic number.

It is an amenable number.

1026385054697 is a deficient number, since it is larger than the sum of its proper divisors (55426130143).

1026385054697 is an equidigital number, since it uses as much as digits as its factorization.

1026385054697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667784763.

The product of its (nonzero) digits is 10886400, while the sum is 56.

The spelling of 1026385054697 in words is "one trillion, twenty-six billion, three hundred eighty-five million, fifty-four thousand, six hundred ninety-seven".

Divisors: 1 29 53 1537 667784681 19365755749 35392588093 1026385054697