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42032017 = 231827479
BaseRepresentation
bin1010000001010…
…1101110010001
32221002110002101
42200111232101
541230011032
64100520401
71020160216
oct240255621
987073071
1042032017
11217a9305
12120b0101
138928721
145821b0d
153a53de7
hex2815b91

42032017 has 4 divisors (see below), whose sum is σ = 43859520. Its totient is φ = 40204516.

The previous prime is 42031999. The next prime is 42032051. The reversal of 42032017 is 71023024.

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 42032017 - 215 = 41999249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42031985 and 42032003.

It is not an unprimeable number, because it can be changed into a prime (42035017) 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, 913717 + ... + 913762.

It is an arithmetic number, because the mean of its divisors is an integer number (10964880).

Almost surely, 242032017 is an apocalyptic number.

It is an amenable number.

42032017 is a deficient number, since it is larger than the sum of its proper divisors (1827503).

42032017 is a wasteful number, since it uses less digits than its factorization.

42032017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827502.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 42032017 is about 6483.2103930075. The cubic root of 42032017 is about 347.6909689945.

The spelling of 42032017 in words is "forty-two million, thirty-two thousand, seventeen".

Divisors: 1 23 1827479 42032017