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9380861249 = 31812949029
BaseRepresentation
bin10001011110010010…
…01001010101000001
3220012202202010102112
420233021021111001
5123203000024444
64150504225105
7451316001464
oct105711112501
926182663375
109380861249
113a842849a1
12199976b195
13b66650496
1464dc372db
1539d85e69e
hex22f249541

9380861249 has 4 divisors (see below), whose sum is σ = 9383813460. Its totient is φ = 9377909040.

The previous prime is 9380861233. The next prime is 9380861261. The reversal of 9380861249 is 9421680839.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 513249025 + 8867612224 = 22655^2 + 94168^2 .

It is a cyclic number.

It is not a de Polignac number, because 9380861249 - 24 = 9380861233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9380861197 and 9380861206.

It is not an unprimeable number, because it can be changed into a prime (9380861549) 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, 1471334 + ... + 1477695.

It is an arithmetic number, because the mean of its divisors is an integer number (2345953365).

Almost surely, 29380861249 is an apocalyptic number.

It is an amenable number.

9380861249 is a deficient number, since it is larger than the sum of its proper divisors (2952211).

9380861249 is a wasteful number, since it uses less digits than its factorization.

9380861249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952210.

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 9380861249 is about 96854.8462855628. The cubic root of 9380861249 is about 2109.0210000530.

The spelling of 9380861249 in words is "nine billion, three hundred eighty million, eight hundred sixty-one thousand, two hundred forty-nine".

Divisors: 1 3181 2949029 9380861249