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869480365 = 51356923509
BaseRepresentation
bin110011110100110…
…011011110101101
32020121002011211111
4303310303132231
53240041332430
6222135552021
730355314115
oct6364633655
92217064744
10869480365
11406887516
1220322b611
1310b19c030
1483694045
15514edc2a
hex33d337ad

869480365 has 16 divisors (see below), whose sum is σ = 1125658800. Its totient is φ = 640922112.

The previous prime is 869480347. The next prime is 869480383. The reversal of 869480365 is 563084968.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (869480347) and next prime (869480383).

It can be written as a sum of positive squares in 8 ways, for example, as 12981609 + 856498756 = 3603^2 + 29266^2 .

It is a cyclic number.

It is not a de Polignac number, because 869480365 - 27 = 869480237 is a prime.

It is a super-2 number, since 2×8694803652 = 1511992210241066450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25231 + ... + 48739.

It is an arithmetic number, because the mean of its divisors is an integer number (70353675).

Almost surely, 2869480365 is an apocalyptic number.

It is an amenable number.

869480365 is a deficient number, since it is larger than the sum of its proper divisors (256178435).

869480365 is a wasteful number, since it uses less digits than its factorization.

869480365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24096.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The square root of 869480365 is about 29486.9524535853. The cubic root of 869480365 is about 954.4501700573.

The spelling of 869480365 in words is "eight hundred sixty-nine million, four hundred eighty thousand, three hundred sixty-five".

Divisors: 1 5 13 65 569 2845 7397 23509 36985 117545 305617 1528085 13376621 66883105 173896073 869480365