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868507801 = 72671371931
BaseRepresentation
bin110011110001000…
…110000010011001
32020112020202201121
4303301012002121
53234314222201
6222103045241
730344123500
oct6361060231
92215222647
10868507801
11406282847
12202a40821
1310ac1b455
14834bd837
15513aa9a1
hex33c46099

868507801 has 24 divisors (see below), whose sum is σ = 1033403616. Its totient is φ = 727594560.

The previous prime is 868507777. The next prime is 868507817. The reversal of 868507801 is 108705868.

It is not a de Polignac number, because 868507801 - 215 = 868475033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (868507891) 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 23 ways as a sum of consecutive naturals, for example, 448806 + ... + 450736.

It is an arithmetic number, because the mean of its divisors is an integer number (43058484).

Almost surely, 2868507801 is an apocalyptic number.

It is an amenable number.

868507801 is a deficient number, since it is larger than the sum of its proper divisors (164895815).

868507801 is a wasteful number, since it uses less digits than its factorization.

868507801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149 (or 2142 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 868507801 is about 29470.4564097674. The cubic root of 868507801 is about 954.0941680767.

The spelling of 868507801 in words is "eight hundred sixty-eight million, five hundred seven thousand, eight hundred one".

Divisors: 1 7 49 67 137 469 959 1931 3283 6713 9179 13517 64253 94619 129377 264547 449771 905639 1851829 6339473 12962803 17724649 124072543 868507801