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42215088 = 2434192099
BaseRepresentation
bin1010000100001…
…0011010110000
32221102202012210
42201002122300
541301340323
64104452120
71021552026
oct241023260
987382183
1042215088
1121913903
121217a040
138990b56
14586c716
153a8d293
hex28426b0

42215088 has 40 divisors (see below), whose sum is σ = 109368000. Its totient is φ = 14031424.

The previous prime is 42215081. The next prime is 42215101. The reversal of 42215088 is 88051224.

It is a super-2 number, since 2×422150882 = 3564227309695488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42215081) 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, 19063 + ... + 21161.

It is an arithmetic number, because the mean of its divisors is an integer number (2734200).

Almost surely, 242215088 is an apocalyptic number.

42215088 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

42215088 is an abundant number, since it is smaller than the sum of its proper divisors (67152912).

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

42215088 is a wasteful number, since it uses less digits than its factorization.

42215088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2529 (or 2523 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 42215088 is about 6497.3139065309. The cubic root of 42215088 is about 348.1950287433.

The spelling of 42215088 in words is "forty-two million, two hundred fifteen thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 48 419 838 1257 1676 2099 2514 3352 4198 5028 6297 6704 8396 10056 12594 16792 20112 25188 33584 50376 100752 879481 1758962 2638443 3517924 5276886 7035848 10553772 14071696 21107544 42215088