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42052992 = 273971129
BaseRepresentation
bin1010000001101…
…0110110000000
32221010111212020
42200122312000
541231143432
64101201440
71020305322
oct240326600
987114766
1042052992
1121813043
1212100280
138935137
145829612
153a5a22c
hex281ad80

42052992 has 64 divisors (see below), whose sum is σ = 112954800. Its totient is φ = 13860864.

The previous prime is 42052961. The next prime is 42053041. The reversal of 42052992 is 29925024.

It is a tau number, because it is divible by the number of its divisors (64).

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, 36684 + ... + 37812.

Almost surely, 242052992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42052992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56477400).

42052992 is an abundant number, since it is smaller than the sum of its proper divisors (70901808).

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

42052992 is a wasteful number, since it uses less digits than its factorization.

42052992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 42052992 is about 6484.8278311764. The cubic root of 42052992 is about 347.7487947968.

The spelling of 42052992 in words is "forty-two million, fifty-two thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 97 128 192 194 291 384 388 582 776 1129 1164 1552 2258 2328 3104 3387 4516 4656 6208 6774 9032 9312 12416 13548 18064 18624 27096 36128 37248 54192 72256 108384 109513 144512 216768 219026 328539 433536 438052 657078 876104 1314156 1752208 2628312 3504416 5256624 7008832 10513248 14017664 21026496 42052992