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42806233 = 296722031
BaseRepresentation
bin1010001101001…
…0101111011001
32222112210010001
42203102233121
541424244413
64125253001
71026563341
oct243225731
988483101
1042806233
1122187a58
1212404161
138b39c42
145983d21
153b584dd
hex28d2bd9

42806233 has 8 divisors (see below), whose sum is σ = 44945280. Its totient is φ = 40711440.

The previous prime is 42806219. The next prime is 42806261. The reversal of 42806233 is 33260824.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42806233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42806263) 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, 9073 + ... + 12958.

It is an arithmetic number, because the mean of its divisors is an integer number (5618160).

Almost surely, 242806233 is an apocalyptic number.

It is an amenable number.

42806233 is a deficient number, since it is larger than the sum of its proper divisors (2139047).

42806233 is a wasteful number, since it uses less digits than its factorization.

42806233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22127.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 42806233 is about 6542.6472471011. The cubic root of 42806233 is about 349.8127787815.

The spelling of 42806233 in words is "forty-two million, eight hundred six thousand, two hundred thirty-three".

Divisors: 1 29 67 1943 22031 638899 1476077 42806233