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42752688 = 24311217433
BaseRepresentation
bin1010001100010…
…1101010110000
32222110001122220
42203011222300
541421041223
64124201040
71026251256
oct243055260
988401586
1042752688
1122150800
1212399180
138b1b764
14596c5d6
153b476e3
hex28c5ab0

42752688 has 120 divisors (see below), whose sum is σ = 128835504. Its totient is φ = 12165120.

The previous prime is 42752687. The next prime is 42752693. The reversal of 42752688 is 88625724.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42752681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98520 + ... + 98952.

Almost surely, 242752688 is an apocalyptic number.

42752688 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42752688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64417752).

42752688 is an abundant number, since it is smaller than the sum of its proper divisors (86082816).

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

42752688 is a wasteful number, since it uses less digits than its factorization.

42752688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 466 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 42752688 is about 6538.5539685775. The cubic root of 42752688 is about 349.6668612421. Note that the first 3 decimals are identical.

The spelling of 42752688 in words is "forty-two million, seven hundred fifty-two thousand, six hundred eighty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 17 22 24 33 34 44 48 51 66 68 88 102 121 132 136 176 187 204 242 264 272 363 374 408 433 484 528 561 726 748 816 866 968 1122 1299 1452 1496 1732 1936 2057 2244 2598 2904 2992 3464 4114 4488 4763 5196 5808 6171 6928 7361 8228 8976 9526 10392 12342 14289 14722 16456 19052 20784 22083 24684 28578 29444 32912 38104 44166 49368 52393 57156 58888 76208 80971 88332 98736 104786 114312 117776 157179 161942 176664 209572 228624 242913 314358 323884 353328 419144 485826 628716 647768 838288 890681 971652 1257432 1295536 1781362 1943304 2514864 2672043 3562724 3886608 5344086 7125448 10688172 14250896 21376344 42752688