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42008254 = 2104920023
BaseRepresentation
bin1010000000111…
…1111010111110
32221001020111021
42200033322332
541223231004
64100214354
71020031021
oct240177276
987036437
1042008254
1121792472
121209a3ba
13891a972
1458171b8
153a4bd54
hex280febe

42008254 has 8 divisors (see below), whose sum is σ = 63075600. Its totient is φ = 20983056.

The previous prime is 42008249. The next prime is 42008261. The reversal of 42008254 is 45280024.

It is a happy number.

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, 7914 + ... + 12109.

It is an arithmetic number, because the mean of its divisors is an integer number (7884450).

Almost surely, 242008254 is an apocalyptic number.

42008254 is a deficient number, since it is larger than the sum of its proper divisors (21067346).

42008254 is a wasteful number, since it uses less digits than its factorization.

42008254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21074.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 42008254 is about 6481.3774770491. The cubic root of 42008254 is about 347.6254337304.

Adding to 42008254 its reverse (45280024), we get a palindrome (87288278).

The spelling of 42008254 in words is "forty-two million, eight thousand, two hundred fifty-four".

Divisors: 1 2 1049 2098 20023 40046 21004127 42008254