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42452144123 = 471997452297
BaseRepresentation
bin100111100010010110…
…000100111111111011
311001120120012100212012
4213202112010333323
51143420222102443
631300252440135
73032001162014
oct474226047773
9131516170765
1042452144123
1117005146234
12828917904b
1340070c750c
1420aa12200b
151186e0d118
hex9e2584ffb

42452144123 has 8 divisors (see below), whose sum is σ = 43377187392. Its totient is φ = 41528009536.

The previous prime is 42452144101. The next prime is 42452144143. The reversal of 42452144123 is 32144125424.

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

It is a cyclic number.

It is not a de Polignac number, because 42452144123 - 216 = 42452078587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42452144123.

It is not an unprimeable number, because it can be changed into a prime (42452144143) 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, 132290 + ... + 320007.

It is an arithmetic number, because the mean of its divisors is an integer number (5422148424).

Almost surely, 242452144123 is an apocalyptic number.

42452144123 is a deficient number, since it is larger than the sum of its proper divisors (925043269).

42452144123 is a wasteful number, since it uses less digits than its factorization.

42452144123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454341.

The product of its digits is 30720, while the sum is 32.

Adding to 42452144123 its reverse (32144125424), we get a palindrome (74596269547).

The spelling of 42452144123 in words is "forty-two billion, four hundred fifty-two million, one hundred forty-four thousand, one hundred twenty-three".

Divisors: 1 47 1997 93859 452297 21257959 903237109 42452144123