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47039668 = 221319471013
BaseRepresentation
bin1011001101110…
…0010010110100
310021111212021221
42303130102310
544020232133
64400120124
71110554614
oct263342264
9107455257
1047039668
1124609665
1213906044
13998cb30
146366a44
1541e2a2d
hex2cdc4b4

47039668 has 48 divisors (see below), whose sum is σ = 95397120. Its totient is φ = 20110464.

The previous prime is 47039647. The next prime is 47039689. The reversal of 47039668 is 86693074.

It is a happy number.

47039668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (47039647) and next prime (47039689).

It is a congruent number.

It is an unprimeable number.

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, 45930 + ... + 46942.

It is an arithmetic number, because the mean of its divisors is an integer number (1987440).

Almost surely, 247039668 is an apocalyptic number.

It is an amenable number.

47039668 is an abundant number, since it is smaller than the sum of its proper divisors (48357452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47039668 is a wasteful number, since it uses less digits than its factorization.

47039668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096 (or 1094 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 47039668 is about 6858.5470764587. The cubic root of 47039668 is about 360.9841077710.

The spelling of 47039668 in words is "forty-seven million, thirty-nine thousand, six hundred sixty-eight".

Divisors: 1 2 4 13 19 26 38 47 52 76 94 188 247 494 611 893 988 1013 1222 1786 2026 2444 3572 4052 11609 13169 19247 23218 26338 38494 46436 47611 52676 76988 95222 190444 250211 500422 618943 904609 1000844 1237886 1809218 2475772 3618436 11759917 23519834 47039668