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42023042 = 231677791
BaseRepresentation
bin1010000001001…
…1100010000010
32221001222202222
42200103202002
541224214132
64100411042
71020122105
oct240234202
987058688
1042023042
11217a2596
12120a6a82
138924609
14581c73c
153a51412
hex2813882

42023042 has 8 divisors (see below), whose sum is σ = 65068032. Its totient is φ = 20333700.

The previous prime is 42023039. The next prime is 42023057. The reversal of 42023042 is 24032024.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42023042.

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, 338834 + ... + 338957.

It is an arithmetic number, because the mean of its divisors is an integer number (8133504).

Almost surely, 242023042 is an apocalyptic number.

42023042 is a deficient number, since it is larger than the sum of its proper divisors (23044990).

42023042 is a wasteful number, since it uses less digits than its factorization.

42023042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677824.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 42023042 is about 6482.5181835457. The cubic root of 42023042 is about 347.6662200151. Note that the first 3 decimals are identical.

Adding to 42023042 its reverse (24032024), we get a palindrome (66055066).

The spelling of 42023042 in words is "forty-two million, twenty-three thousand, forty-two".

Divisors: 1 2 31 62 677791 1355582 21011521 42023042