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47989012 = 2230739079
BaseRepresentation
bin1011011100010…
…0000100010100
310100022002112211
42313010010110
544241122022
64432323204
71121620441
oct267040424
9110262484
1047989012
11250a7945
12140a3504
139c32c86
1465329c8
15432de77
hex2dc4114

47989012 has 12 divisors (see below), whose sum is σ = 84256480. Its totient is φ = 23915736.

The previous prime is 47989001. The next prime is 47989027. The reversal of 47989012 is 21098974.

It is a super-2 number, since 2×479890122 = 4605890545472288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 18312 + ... + 20767.

Almost surely, 247989012 is an apocalyptic number.

It is an amenable number.

47989012 is a deficient number, since it is larger than the sum of its proper divisors (36267468).

47989012 is a wasteful number, since it uses less digits than its factorization.

47989012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39390 (or 39388 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 47989012 is about 6927.4101942934. The cubic root of 47989012 is about 363.3963851708.

The spelling of 47989012 in words is "forty-seven million, nine hundred eighty-nine thousand, twelve".

Divisors: 1 2 4 307 614 1228 39079 78158 156316 11997253 23994506 47989012