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913083385 = 5182616677
BaseRepresentation
bin110110011011001…
…000101111111001
32100122010102221011
4312123020233321
53332222132020
6230334313521
731425036454
oct6633105771
92318112834
10913083385
11429459075
122159588a1
13117227836
14893a449b
155526335a
hex366c8bf9

913083385 has 4 divisors (see below), whose sum is σ = 1095700068. Its totient is φ = 730466704.

The previous prime is 913083383. The next prime is 913083397. The reversal of 913083385 is 583380319.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 583380319 = 797384561.

It can be written as a sum of positive squares in 2 ways, for example, as 320696464 + 592386921 = 17908^2 + 24339^2 .

It is a cyclic number.

It is not a de Polignac number, because 913083385 - 21 = 913083383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (913083383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91308334 + ... + 91308343.

It is an arithmetic number, because the mean of its divisors is an integer number (273925017).

Almost surely, 2913083385 is an apocalyptic number.

It is an amenable number.

913083385 is a deficient number, since it is larger than the sum of its proper divisors (182616683).

913083385 is a wasteful number, since it uses less digits than its factorization.

913083385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182616682.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 913083385 is about 30217.2696483319. The cubic root of 913083385 is about 970.1453656093.

The spelling of 913083385 in words is "nine hundred thirteen million, eighty-three thousand, three hundred eighty-five".

Divisors: 1 5 182616677 913083385