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6792144021 = 321358052513
BaseRepresentation
bin1100101001101011…
…11110010010010101
3122112100121122222200
412110311332102111
5102402242102041
63041551115113
7330213162105
oct62465762225
918470548880
106792144021
112975a96373
121396812a99
1384322ac40
144860d1205
1529b45c1b6
hex194d7e495

6792144021 has 12 divisors (see below), whose sum is σ = 10565557548. Its totient is φ = 4179780864.

The previous prime is 6792144001. The next prime is 6792144043. The reversal of 6792144021 is 1204412976.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1347917796 + 5444226225 = 36714^2 + 73785^2 .

It is not a de Polignac number, because 6792144021 - 26 = 6792143957 is a prime.

It is a super-2 number, since 2×67921440212 = 92266440804012096882, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6792144001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29026140 + ... + 29026373.

It is an arithmetic number, because the mean of its divisors is an integer number (880463129).

Almost surely, 26792144021 is an apocalyptic number.

It is an amenable number.

6792144021 is a deficient number, since it is larger than the sum of its proper divisors (3773413527).

6792144021 is a wasteful number, since it uses less digits than its factorization.

6792144021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58052532 (or 58052529 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 6792144021 is about 82414.4648772289. The cubic root of 6792144021 is about 1893.8066129009.

Adding to 6792144021 its reverse (1204412976), we get a palindrome (7996556997).

The spelling of 6792144021 in words is "six billion, seven hundred ninety-two million, one hundred forty-four thousand, twenty-one".

Divisors: 1 3 9 13 39 117 58052513 174157539 522472617 754682669 2264048007 6792144021