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47293989 = 338341161
BaseRepresentation
bin1011010001101…
…0011000100101
310021222210011020
42310122120211
544101401424
64405401353
71112664231
oct264323045
9107883136
1047293989
1124772746
1213a09259
139a4b812
1463d15c1
154243079
hex2d1a625

47293989 has 8 divisors (see below), whose sum is σ = 63224832. Its totient is φ = 31446240.

The previous prime is 47293973. The next prime is 47293991. The reversal of 47293989 is 98939274.

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

It is not a de Polignac number, because 47293989 - 24 = 47293973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47293969) 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, 19432 + ... + 21729.

It is an arithmetic number, because the mean of its divisors is an integer number (7903104).

Almost surely, 247293989 is an apocalyptic number.

It is an amenable number.

47293989 is a deficient number, since it is larger than the sum of its proper divisors (15930843).

47293989 is a wasteful number, since it uses less digits than its factorization.

47293989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41547.

The product of its digits is 979776, while the sum is 51.

The square root of 47293989 is about 6877.0625269805. The cubic root of 47293989 is about 361.6334950381.

The spelling of 47293989 in words is "forty-seven million, two hundred ninety-three thousand, nine hundred eighty-nine".

Divisors: 1 3 383 1149 41161 123483 15764663 47293989