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42080631 = 373192149
BaseRepresentation
bin1010000010000…
…1100101110111
32221011220202220
42200201211313
541233040011
64101533423
71020452025
oct240414567
987156686
1042080631
112183188a
1212114273
1389448a8
145835715
153a63506
hex2821977

42080631 has 8 divisors (see below), whose sum is σ = 56876400. Its totient is φ = 27669312.

The previous prime is 42080567. The next prime is 42080641. The reversal of 42080631 is 13608024.

It is a happy number.

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

It is not a de Polignac number, because 42080631 - 26 = 42080567 is a prime.

It is a super-2 number, since 2×420806312 = 3541559010716322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42080641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95856 + ... + 96293.

It is an arithmetic number, because the mean of its divisors is an integer number (7109550).

Almost surely, 242080631 is an apocalyptic number.

42080631 is a deficient number, since it is larger than the sum of its proper divisors (14795769).

42080631 is a wasteful number, since it uses less digits than its factorization.

42080631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192225.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 42080631 is about 6486.9585323170. The cubic root of 42080631 is about 347.8249631705.

Adding to 42080631 its reverse (13608024), we get a palindrome (55688655).

The spelling of 42080631 in words is "forty-two million, eighty thousand, six hundred thirty-one".

Divisors: 1 3 73 219 192149 576447 14026877 42080631