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142871603173 = 1378643139747
BaseRepresentation
bin1000010100001111001…
…1111010011111100101
3111122202222010102202021
42011003303322133211
54320100112300143
6145345002143141
713215330406135
oct2050363723745
9448688112667
10142871603173
1155656328102
12238334b1ab1
131061b79c680
146cb4b70ac5
153ab2da1ced
hex2143cfa7e5

142871603173 has 8 divisors (see below), whose sum is σ = 153864783968. Its totient is φ = 131878859184.

The previous prime is 142871603153. The next prime is 142871603191. The reversal of 142871603173 is 371306178241.

It is a happy number.

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 142871603173 - 217 = 142871472101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142871603153) 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, 952486 + ... + 1092232.

It is an arithmetic number, because the mean of its divisors is an integer number (19233097996).

Almost surely, 2142871603173 is an apocalyptic number.

142871603173 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142871603173 is a deficient number, since it is larger than the sum of its proper divisors (10993180795).

142871603173 is a wasteful number, since it uses less digits than its factorization.

142871603173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218403.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 142871603173 in words is "one hundred forty-two billion, eight hundred seventy-one million, six hundred three thousand, one hundred seventy-three".

Divisors: 1 13 78643 139747 1022359 1816711 10990123321 142871603173