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42029288 = 2374631621
BaseRepresentation
bin1010000001010…
…1000011101000
32221002022100022
42200111003220
541224414123
64100500012
71020146240
oct240250350
987068308
1042029288
11217a7254
12120aa608
138927402
145820b20
153a531c8
hex28150e8

42029288 has 32 divisors (see below), whose sum is σ = 90312960. Its totient is φ = 17962560.

The previous prime is 42029263. The next prime is 42029293. The reversal of 42029288 is 88292024.

It is a Cunningham number, because it is equal to 64832-1.

It is a super-2 number, since 2×420292882 = 3532922099573888, which contains 22 as substring.

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, 25118 + ... + 26738.

It is an arithmetic number, because the mean of its divisors is an integer number (2822280).

Almost surely, 242029288 is an apocalyptic number.

It is an amenable number.

42029288 is an abundant number, since it is smaller than the sum of its proper divisors (48283672).

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

42029288 is a wasteful number, since it uses less digits than its factorization.

42029288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097 (or 2093 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 42029288 is about 6482.9999228752. Note that the first 4 decimals coincide. The cubic root of 42029288 is about 347.6834440230.

The spelling of 42029288 in words is "forty-two million, twenty-nine thousand, two hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 56 463 926 1621 1852 3241 3242 3704 6482 6484 11347 12964 12968 22694 25928 45388 90776 750523 1501046 3002092 5253661 6004184 10507322 21014644 42029288