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42030542 = 2139151189
BaseRepresentation
bin1010000001010…
…1010111001110
32221002101001202
42200111113032
541224434132
64100505502
71020153011
oct240252716
987071052
1042030542
11217a8194
12120ab292
138927b58
145821378
153a53762
hex28155ce

42030542 has 8 divisors (see below), whose sum is σ = 63499800. Its totient is φ = 20863944.

The previous prime is 42030533. The next prime is 42030559. The reversal of 42030542 is 24503024.

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

It is a congruent number.

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, 75317 + ... + 75872.

It is an arithmetic number, because the mean of its divisors is an integer number (7937475).

Almost surely, 242030542 is an apocalyptic number.

42030542 is a deficient number, since it is larger than the sum of its proper divisors (21469258).

42030542 is a wasteful number, since it uses less digits than its factorization.

42030542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151330.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 42030542 is about 6483.0966366390. The cubic root of 42030542 is about 347.6869018554.

Adding to 42030542 its reverse (24503024), we get a palindrome (66533566).

The spelling of 42030542 in words is "forty-two million, thirty thousand, five hundred forty-two".

Divisors: 1 2 139 278 151189 302378 21015271 42030542