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47045091 = 361257077
BaseRepresentation
bin1011001101110…
…1100111100011
310021112010201210
42303131213203
544020420331
64400201203
71110606462
oct263354743
9107463653
1047045091
1124612745
1213909203
139992442
1463689d9
1541e4446
hex2cdd9e3

47045091 has 8 divisors (see below), whose sum is σ = 63755344. Its totient is φ = 30849120.

The previous prime is 47045059. The next prime is 47045123. The reversal of 47045091 is 19054074.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47045059) and next prime (47045123).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47045091 - 25 = 47045059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47045021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128356 + ... + 128721.

It is an arithmetic number, because the mean of its divisors is an integer number (7969418).

Almost surely, 247045091 is an apocalyptic number.

47045091 is a deficient number, since it is larger than the sum of its proper divisors (16710253).

47045091 is a wasteful number, since it uses less digits than its factorization.

47045091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257141.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 47045091 is about 6858.9424111885. The cubic root of 47045091 is about 360.9979793371.

The spelling of 47045091 in words is "forty-seven million, forty-five thousand, ninety-one".

Divisors: 1 3 61 183 257077 771231 15681697 47045091