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9047041249 = 17239778853
BaseRepresentation
bin10000110110011111…
…01110010011100001
3212100111121022110211
420123033232103201
5122012020304444
64053421254121
7440123403361
oct103317562341
925314538424
109047041249
113922900aa4
121905a04341
13b12440a5c
1461b77c9a1
1537e3bec34
hex21b3ee4e1

9047041249 has 12 divisors (see below), whose sum is σ = 9634854844. Its totient is φ = 8493306624.

The previous prime is 9047041243. The next prime is 9047041253. The reversal of 9047041249 is 9421407409.

It can be written as a sum of positive squares in 6 ways, for example, as 78004224 + 8969037025 = 8832^2 + 94705^2 .

It is not a de Polignac number, because 9047041249 - 213 = 9047033057 is a prime.

It is a super-2 number, since 2×90470412492 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9047041243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75307 + ... + 154159.

Almost surely, 29047041249 is an apocalyptic number.

It is an amenable number.

9047041249 is a deficient number, since it is larger than the sum of its proper divisors (587813595).

9047041249 is a wasteful number, since it uses less digits than its factorization.

9047041249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79284 (or 79267 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 9047041249 is about 95115.9358309637. The cubic root of 9047041249 is about 2083.7015917134.

The spelling of 9047041249 in words is "nine billion, forty-seven million, forty-one thousand, two hundred forty-nine".

Divisors: 1 17 289 397 6749 78853 114733 1340501 22788517 31304641 532178897 9047041249