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6820248020 = 2251747426799
BaseRepresentation
bin1100101101000010…
…01011100111010100
3122121022111111102112
412112201023213110
5102431440414040
63044433330152
7331004103005
oct62641134724
918538444375
106820248020
11298a941313
1213a4106958
13848cbac21
14489b291ac
1529db5e365
hex19684b9d4

6820248020 has 48 divisors (see below), whose sum is σ = 15487718400. Its totient is φ = 2512986624.

The previous prime is 6820248013. The next prime is 6820248023. The reversal of 6820248020 is 208420286.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6820248023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197420 + ... + 229379.

It is an arithmetic number, because the mean of its divisors is an integer number (322660800).

Almost surely, 26820248020 is an apocalyptic number.

It is an amenable number.

6820248020 is an abundant number, since it is smaller than the sum of its proper divisors (8667470380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6820248020 is a wasteful number, since it uses less digits than its factorization.

6820248020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426872 (or 426870 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 6820248020 is about 82584.7929100752. The cubic root of 6820248020 is about 1896.4150332178.

The spelling of 6820248020 in words is "six billion, eight hundred twenty million, two hundred forty-eight thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 47 68 85 94 170 188 235 340 470 799 940 1598 3196 3995 7990 15980 426799 853598 1707196 2133995 4267990 7255583 8535980 14511166 20059553 29022332 36277915 40119106 72555830 80238212 100297765 145111660 200595530 341012401 401191060 682024802 1364049604 1705062005 3410124010 6820248020