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42930501 = 314310167
BaseRepresentation
bin1010001111000…
…1000101000101
32222210002120120
42203301011011
541442234001
64132052153
71030621545
oct243610505
988702516
1042930501
1122262359
1212464059
138b81683
1459b7325
153b80236
hex28f1145

42930501 has 4 divisors (see below), whose sum is σ = 57240672. Its totient is φ = 28620332.

The previous prime is 42930479. The next prime is 42930509. The reversal of 42930501 is 10503924.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42930501 - 27 = 42930373 is a prime.

It is a super-2 number, since 2×429305012 = 3686055832222002, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42930509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7155081 + ... + 7155086.

It is an arithmetic number, because the mean of its divisors is an integer number (14310168).

Almost surely, 242930501 is an apocalyptic number.

It is an amenable number.

42930501 is a deficient number, since it is larger than the sum of its proper divisors (14310171).

42930501 is a wasteful number, since it uses less digits than its factorization.

42930501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14310170.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 42930501 is about 6552.1371322646. The cubic root of 42930501 is about 350.1509580104.

The spelling of 42930501 in words is "forty-two million, nine hundred thirty thousand, five hundred one".

Divisors: 1 3 14310167 42930501