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164247982 = 21731155833
BaseRepresentation
bin10011100101000…
…11100110101110
3102110001122212121
421302203212232
5314021413412
624144223154
74033041043
oct1162434656
9373048777
10164247982
1184793a38
124700aaba
132804a172
1417b571ca
15e646107
hex9ca39ae

164247982 has 16 divisors (see below), whose sum is σ = 269281152. Its totient is φ = 74799360.

The previous prime is 164247977. The next prime is 164248001. The reversal of 164247982 is 289742461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76863 + ... + 78970.

It is an arithmetic number, because the mean of its divisors is an integer number (16830072).

Almost surely, 2164247982 is an apocalyptic number.

164247982 is a deficient number, since it is larger than the sum of its proper divisors (105033170).

164247982 is a wasteful number, since it uses less digits than its factorization.

164247982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155883.

The product of its digits is 193536, while the sum is 43.

The square root of 164247982 is about 12815.9268880561. The cubic root of 164247982 is about 547.6461187808.

The spelling of 164247982 in words is "one hundred sixty-four million, two hundred forty-seven thousand, nine hundred eighty-two".

Divisors: 1 2 17 31 34 62 527 1054 155833 311666 2649161 4830823 5298322 9661646 82123991 164247982