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8725217701 is a prime number
BaseRepresentation
bin10000010000001000…
…00100000110100101
3211112002000222120011
420020010010012211
5120332123431301
64001443410221
7426135061324
oct101004040645
924462028504
108725217701
113778181222
121836083971
13a90871815
145cab280bb
15360eeea51
hex2081041a5

8725217701 has 2 divisors, whose sum is σ = 8725217702. Its totient is φ = 8725217700.

The previous prime is 8725217689. The next prime is 8725217759. The reversal of 8725217701 is 1077125278.

8725217701 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5501930625 + 3223287076 = 74175^2 + 56774^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8725217701 is a prime.

It is a super-2 number, since 2×87252177012 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8725217101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4362608850 + 4362608851.

It is an arithmetic number, because the mean of its divisors is an integer number (4362608851).

Almost surely, 28725217701 is an apocalyptic number.

It is an amenable number.

8725217701 is a deficient number, since it is larger than the sum of its proper divisors (1).

8725217701 is an equidigital number, since it uses as much as digits as its factorization.

8725217701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54880, while the sum is 40.

The square root of 8725217701 is about 93408.8737808138. The cubic root of 8725217701 is about 2058.6953832207.

The spelling of 8725217701 in words is "eight billion, seven hundred twenty-five million, two hundred seventeen thousand, seven hundred one".