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47642982 = 23233131103
BaseRepresentation
bin1011010110111…
…1100101100110
310022122111212220
42311233211212
544144033412
64421053210
71115646552
oct265574546
9108574786
1047642982
1124990972
1213b57206
139b4161a
146482862
1542b168c
hex2d6f966

47642982 has 32 divisors (see below), whose sum is σ = 99836928. Its totient is φ = 15128256.

The previous prime is 47642981. The next prime is 47642999. The reversal of 47642982 is 28924674.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47642981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42643 + ... + 43745.

It is an arithmetic number, because the mean of its divisors is an integer number (3119904).

Almost surely, 247642982 is an apocalyptic number.

47642982 is an abundant number, since it is smaller than the sum of its proper divisors (52193946).

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

47642982 is a wasteful number, since it uses less digits than its factorization.

47642982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444.

The product of its digits is 193536, while the sum is 42.

The square root of 47642982 is about 6902.3895862230. The cubic root of 47642982 is about 362.5208409738.

The spelling of 47642982 in words is "forty-seven million, six hundred forty-two thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 23 46 69 138 313 626 939 1103 1878 2206 3309 6618 7199 14398 21597 25369 43194 50738 76107 152214 345239 690478 1035717 2071434 7940497 15880994 23821491 47642982