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47806394 = 2196172039
BaseRepresentation
bin1011011001011…
…1011110111010
310022221211001012
42312113132322
544214301034
64424353522
71120230146
oct266273672
9108854035
1047806394
1124a92719
12140158a2
139b9ab0c
1464c6226
1542e4cce
hex2d977ba

47806394 has 16 divisors (see below), whose sum is σ = 75643200. Its totient is φ = 22597344.

The previous prime is 47806393. The next prime is 47806399. The reversal of 47806394 is 49360874.

It is not an unprimeable number, because it can be changed into a prime (47806393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22427 + ... + 24465.

It is an arithmetic number, because the mean of its divisors is an integer number (4727700).

Almost surely, 247806394 is an apocalyptic number.

47806394 is a deficient number, since it is larger than the sum of its proper divisors (27836806).

47806394 is a wasteful number, since it uses less digits than its factorization.

47806394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 47806394 is about 6914.2168030804. The cubic root of 47806394 is about 362.9348414695.

The spelling of 47806394 in words is "forty-seven million, eight hundred six thousand, three hundred ninety-four".

Divisors: 1 2 19 38 617 1234 2039 4078 11723 23446 38741 77482 1258063 2516126 23903197 47806394