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142431215144239 = 71271732032345569
BaseRepresentation
bin100000011000101001011001…
…111110111100110100101111
3200200022021212021110101110101
4200120221121332330310233
5122132043112034103424
61222531555201051531
742000213201035440
oct4030513176746457
9620267767411411
10142431215144239
114142381485829a
1213b84159926ba7
13616228a642848
1427259c98db2c7
15116ee69519344
hex818a59fbcd2f

142431215144239 has 32 divisors (see below), whose sum is σ = 165020318023680. Its totient is φ = 120413909532672.

The previous prime is 142431215144221. The next prime is 142431215144269. The reversal of 142431215144239 is 932441512134241.

It is not a de Polignac number, because 142431215144239 - 237 = 142293776190767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142431215144269) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3125593647 + ... + 3125639215.

It is an arithmetic number, because the mean of its divisors is an integer number (5156884938240).

Almost surely, 2142431215144239 is an apocalyptic number.

142431215144239 is a deficient number, since it is larger than the sum of its proper divisors (22589102879441).

142431215144239 is a wasteful number, since it uses less digits than its factorization.

142431215144239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66199.

The product of its digits is 829440, while the sum is 46.

The spelling of 142431215144239 in words is "one hundred forty-two trillion, four hundred thirty-one billion, two hundred fifteen million, one hundred forty-four thousand, two hundred thirty-nine".

Divisors: 1 7 127 173 889 1211 20323 21971 45569 142261 153797 318983 2581021 3515879 5787263 7883437 18067147 24611153 40510841 55184059 446516633 926098787 1001196499 3125616431 6482691509 7008375493 117614545949 160215090151 823301821643 1121505631057 20347316449177 142431215144239