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42888330 = 23252320719
BaseRepresentation
bin1010001110011…
…0110010001010
32222200221201200
42203212302022
541434411310
64131125030
71030354602
oct243466212
988627650
1042888330
1122233701
1212443776
138b68414
1459a5c02
153b729c0
hex28e6c8a

42888330 has 48 divisors (see below), whose sum is σ = 116363520. Its totient is φ = 10939104.

The previous prime is 42888323. The next prime is 42888343. The reversal of 42888330 is 3388824.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8290 + ... + 12429.

It is an arithmetic number, because the mean of its divisors is an integer number (2424240).

Almost surely, 242888330 is an apocalyptic number.

42888330 is an abundant number, since it is smaller than the sum of its proper divisors (73475190).

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

42888330 is a wasteful number, since it uses less digits than its factorization.

42888330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20755 (or 20752 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 42888330 is about 6548.9182312806. The cubic root of 42888330 is about 350.0362683504.

The spelling of 42888330 in words is "forty-two million, eight hundred eighty-eight thousand, three hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 23 30 45 46 69 90 115 138 207 230 345 414 690 1035 2070 20719 41438 62157 103595 124314 186471 207190 310785 372942 476537 621570 932355 953074 1429611 1864710 2382685 2859222 4288833 4765370 7148055 8577666 14296110 21444165 42888330