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8020713 = 3101103257
BaseRepresentation
bin11110100110001011101001
3120002111100110
4132212023221
54023130323
6443524533
7125114001
oct36461351
916074313
108020713
114589098
122829749
13187a9ac
1410cb001
15a86793
hex7a62e9

8020713 has 16 divisors (see below), whose sum is σ = 10947456. Its totient is φ = 5222400.

The previous prime is 8020709. The next prime is 8020751. The reversal of 8020713 is 3170208.

It is not a de Polignac number, because 8020713 - 22 = 8020709 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8020713.

It is not an unprimeable number, because it can be changed into a prime (8020703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31081 + ... + 31337.

It is an arithmetic number, because the mean of its divisors is an integer number (684216).

Almost surely, 28020713 is an apocalyptic number.

It is an amenable number.

8020713 is a deficient number, since it is larger than the sum of its proper divisors (2926743).

8020713 is a wasteful number, since it uses less digits than its factorization.

8020713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 8020713 is about 2832.0863334298. The cubic root of 8020713 is about 200.1724595791.

The spelling of 8020713 in words is "eight million, twenty thousand, seven hundred thirteen".

Divisors: 1 3 101 103 257 303 309 771 10403 25957 26471 31209 77871 79413 2673571 8020713