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7028142746893 = 26902326124691
BaseRepresentation
bin110011001000101110111…
…1100111010110100001101
3220212212212100111122110021
41212101131330322310031
51410122114020400033
622540403442142141
71323523633445032
oct146213574726415
926785770448407
107028142746893
11226a6893a2654
12956126951951
133bc99bca5a98
141a4241b43389
15c2c41260b2d
hex6645df3ad0d

7028142746893 has 4 divisors (see below), whose sum is σ = 7028169140608. Its totient is φ = 7028116353180.

The previous prime is 7028142746873. The next prime is 7028142746909. The reversal of 7028142746893 is 3986472418207.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7028142746893 is a prime.

It is a super-2 number, since 2×70281427468932 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7028142746873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12793323 + ... + 13331368.

It is an arithmetic number, because the mean of its divisors is an integer number (1757042285152).

Almost surely, 27028142746893 is an apocalyptic number.

It is an amenable number.

7028142746893 is a deficient number, since it is larger than the sum of its proper divisors (26393715).

7028142746893 is a wasteful number, since it uses less digits than its factorization.

7028142746893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26393714.

The product of its (nonzero) digits is 32514048, while the sum is 61.

The spelling of 7028142746893 in words is "seven trillion, twenty-eight billion, one hundred forty-two million, seven hundred forty-six thousand, eight hundred ninety-three".

Divisors: 1 269023 26124691 7028142746893