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7835052496681 = 40123418346341
BaseRepresentation
bin111001000000011110110…
…0001010101011100101001
31000202000122021120001012201
41302000331201111130221
52011332141414343211
624355212354340201
71436030622242134
oct162007541253451
930660567501181
107835052496681
112550910969663
12a6659b28a661
1344aac46495a7
141d130ba5121b
15d8c1ae910c1
hex7203d855729

7835052496681 has 8 divisors (see below), whose sum is σ = 7857947451528. Its totient is φ = 7812174240000.

The previous prime is 7835052496673. The next prime is 7835052496709. The reversal of 7835052496681 is 1866942505387.

It can be written as a sum of positive squares in 4 ways, for example, as 5340184861456 + 2494867635225 = 2310884^2 + 1579515^2 .

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 7835052496681 - 23 = 7835052496673 is a prime.

It is a super-2 number, since 2×78350524966812 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7835052496651) 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, 3234430 + ... + 5111911.

It is an arithmetic number, because the mean of its divisors is an integer number (982243431441).

It is a 1-persistent number, because it is pandigital, but 2⋅7835052496681 = 15670104993362 is not.

Almost surely, 27835052496681 is an apocalyptic number.

It is an amenable number.

7835052496681 is a deficient number, since it is larger than the sum of its proper divisors (22894954847).

7835052496681 is a wasteful number, since it uses less digits than its factorization.

7835052496681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8349083.

The product of its (nonzero) digits is 87091200, while the sum is 64.

The spelling of 7835052496681 in words is "seven trillion, eight hundred thirty-five billion, fifty-two million, four hundred ninety-six thousand, six hundred eighty-one".

Divisors: 1 401 2341 938741 8346341 3346882741 19538784281 7835052496681