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47080649 = 7112692273
BaseRepresentation
bin1011001110011…
…0010011001001
310021120221111202
42303212103021
544023040044
64401033545
71111115240
oct263462311
9107527452
1047080649
1124637430
12139258b5
1399a5695
146377957
1541eec4e
hex2ce64c9

47080649 has 16 divisors (see below), whose sum is σ = 58942080. Its totient is φ = 36533760.

The previous prime is 47080591. The next prime is 47080681. The reversal of 47080649 is 94608074.

It is a happy number.

47080649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 47080649 - 216 = 47015113 is a prime.

It is a super-2 number, since 2×470806492 = 4433175020522402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47080549) 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 15 ways as a sum of consecutive naturals, for example, 19577 + ... + 21849.

It is an arithmetic number, because the mean of its divisors is an integer number (3683880).

Almost surely, 247080649 is an apocalyptic number.

It is an amenable number.

47080649 is a deficient number, since it is larger than the sum of its proper divisors (11861431).

47080649 is a wasteful number, since it uses less digits than its factorization.

47080649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 47080649 is about 6861.5340121579. The cubic root of 47080649 is about 361.0889072335.

The spelling of 47080649 in words is "forty-seven million, eighty thousand, six hundred forty-nine".

Divisors: 1 7 11 77 269 1883 2273 2959 15911 20713 25003 175021 611437 4280059 6725807 47080649