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47045090 = 254704509
BaseRepresentation
bin1011001101110…
…1100111100010
310021112010201202
42303131213202
544020420330
64400201202
71110606461
oct263354742
9107463652
1047045090
1124612744
1213909202
139992441
1463689d8
1541e4445
hex2cdd9e2

47045090 has 8 divisors (see below), whose sum is σ = 84681180. Its totient is φ = 18818032.

The previous prime is 47045059. The next prime is 47045123. The reversal of 47045090 is 9054074.

It can be written as a sum of positive squares in 2 ways, for example, as 40998409 + 6046681 = 6403^2 + 2459^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2352245 + ... + 2352264.

Almost surely, 247045090 is an apocalyptic number.

47045090 is a deficient number, since it is larger than the sum of its proper divisors (37636090).

47045090 is a wasteful number, since it uses less digits than its factorization.

47045090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4704516.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 47045090 is about 6858.9423382909. The cubic root of 47045090 is about 360.9979767793.

The spelling of 47045090 in words is "forty-seven million, forty-five thousand, ninety".

Divisors: 1 2 5 10 4704509 9409018 23522545 47045090