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42080288 = 2519671033
BaseRepresentation
bin1010000010000…
…1100000100000
32221011220022012
42200201200200
541233032123
64101532052
71020451025
oct240414040
987156265
1042080288
11218315a8
1212114028
1389446a3
14583554c
153a63378
hex2821820

42080288 has 48 divisors (see below), whose sum is σ = 88593120. Its totient is φ = 19616256.

The previous prime is 42080281. The next prime is 42080303. The reversal of 42080288 is 88208024.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (42080281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40220 + ... + 41252.

It is an arithmetic number, because the mean of its divisors is an integer number (1845690).

Almost surely, 242080288 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 42080288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44296560).

42080288 is an abundant number, since it is smaller than the sum of its proper divisors (46512832).

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

42080288 is a wasteful number, since it uses less digits than its factorization.

42080288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1121 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 42080288 is about 6486.9320946037. The cubic root of 42080288 is about 347.8240181254.

It can be divided in two parts, 420 and 80288, that added together give a palindrome (80708).

The spelling of 42080288 in words is "forty-two million, eighty thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 16 19 32 38 67 76 134 152 268 304 536 608 1033 1072 1273 2066 2144 2546 4132 5092 8264 10184 16528 19627 20368 33056 39254 40736 69211 78508 138422 157016 276844 314032 553688 628064 1107376 1315009 2214752 2630018 5260036 10520072 21040144 42080288