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131142442343 = 11163439166609
BaseRepresentation
bin111101000100010110…
…0101101110101100111
3110112111112122022220012
41322020230231311213
54122034431123333
6140125045400435
712321555240023
oct1721054556547
9415445568805
10131142442343
1150687542a60
12214bb40911b
13c49c795913
1464c10d5383
1536282cee48
hex1e88b2dd67

131142442343 has 16 divisors (see below), whose sum is σ = 144270931200. Its totient is φ = 118218372480.

The previous prime is 131142442303. The next prime is 131142442351. The reversal of 131142442343 is 343244241131.

It is a cyclic number.

It is not a de Polignac number, because 131142442343 - 26 = 131142442279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131142442303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703823 + ... + 870431.

It is an arithmetic number, because the mean of its divisors is an integer number (9016933200).

Almost surely, 2131142442343 is an apocalyptic number.

131142442343 is a deficient number, since it is larger than the sum of its proper divisors (13128488857).

131142442343 is a wasteful number, since it uses less digits than its factorization.

131142442343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167222.

The product of its digits is 27648, while the sum is 32.

Adding to 131142442343 its reverse (343244241131), we get a palindrome (474386683474).

The spelling of 131142442343 in words is "one hundred thirty-one billion, one hundred forty-two million, four hundred forty-two thousand, three hundred forty-three".

Divisors: 1 11 163 439 1793 4829 71557 166609 787127 1832699 27157267 73141351 298729937 804554861 11922040213 131142442343