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42808258 = 247455407
BaseRepresentation
bin1010001101001…
…1001111000010
32222112212220001
42203103033002
541424331013
64125310214
71026602263
oct243231702
988485801
1042808258
1122189529
121240536a
138b3ab3c
14598496a
153b58ddd
hex28d33c2

42808258 has 8 divisors (see below), whose sum is σ = 65578752. Its totient is φ = 20948676.

The previous prime is 42808229. The next prime is 42808277. The reversal of 42808258 is 85280824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227610 + ... + 227797.

It is an arithmetic number, because the mean of its divisors is an integer number (8197344).

Almost surely, 242808258 is an apocalyptic number.

42808258 is a deficient number, since it is larger than the sum of its proper divisors (22770494).

42808258 is a wasteful number, since it uses less digits than its factorization.

42808258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455456.

The product of its (nonzero) digits is 40960, while the sum is 37.

The square root of 42808258 is about 6542.8019991438. The cubic root of 42808258 is about 349.8182947983.

The spelling of 42808258 in words is "forty-two million, eight hundred eight thousand, two hundred fifty-eight".

Divisors: 1 2 47 94 455407 910814 21404129 42808258