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6171104020 = 2251132730577
BaseRepresentation
bin1011011111101001…
…11001001100010100
3120221002000120021011
411233310321030110
5100114300312040
62500204102004
7305632342624
oct55764711424
916832016234
106171104020
112687477874
121242834904
13774676753
1442782c884
15261b853ea
hex16fd39314

6171104020 has 24 divisors (see below), whose sum is σ = 13074007464. Its totient is φ = 2446596096.

The previous prime is 6171104003. The next prime is 6171104029. The reversal of 6171104020 is 204011716.

It can be written as a sum of positive squares in 4 ways, for example, as 556299396 + 5614804624 = 23586^2 + 74932^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6171103982 and 6171104000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6171104029) 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, 1363029 + ... + 1367548.

It is an arithmetic number, because the mean of its divisors is an integer number (544750311).

Almost surely, 26171104020 is an apocalyptic number.

It is an amenable number.

6171104020 is an abundant number, since it is smaller than the sum of its proper divisors (6902903444).

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

6171104020 is a wasteful number, since it uses less digits than its factorization.

6171104020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730699 (or 2730697 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 6171104020 is about 78556.3747890647. The cubic root of 6171104020 is about 1834.2320975776.

Adding to 6171104020 its reverse (204011716), we get a palindrome (6375115736).

The spelling of 6171104020 in words is "six billion, one hundred seventy-one million, one hundred four thousand, twenty".

Divisors: 1 2 4 5 10 20 113 226 452 565 1130 2260 2730577 5461154 10922308 13652885 27305770 54611540 308555201 617110402 1234220804 1542776005 3085552010 6171104020