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142254343205 = 51319197584699
BaseRepresentation
bin1000010001111100000…
…1010000010000100101
3111121011221122101020222
42010133001100100211
54312314102440310
6145203432134125
713164123652322
oct2043701202045
9447157571228
10142254343205
11553699605a7
12236a0837345
131055093c8a0
146c56bb3b49
153a78ac5055
hex211f050425

142254343205 has 32 divisors (see below), whose sum is σ = 194494608000. Its totient is φ = 99015098112.

The previous prime is 142254343181. The next prime is 142254343213. The reversal of 142254343205 is 502343452241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142254343205 - 26 = 142254343141 is a prime.

It is a super-3 number, since 3×1422543432053 (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49055 + ... + 535644.

It is an arithmetic number, because the mean of its divisors is an integer number (6077956500).

Almost surely, 2142254343205 is an apocalyptic number.

It is an amenable number.

142254343205 is a deficient number, since it is larger than the sum of its proper divisors (52240264795).

142254343205 is a wasteful number, since it uses less digits than its factorization.

142254343205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584933.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 142254343205 its reverse (502343452241), we get a palindrome (644597795446).

The spelling of 142254343205 in words is "one hundred forty-two billion, two hundred fifty-four million, three hundred forty-three thousand, two hundred five".

Divisors: 1 5 13 19 65 95 197 247 985 1235 2561 3743 12805 18715 48659 243295 584699 2923495 7601087 11109281 38005435 55546405 115185703 144420653 575928515 722103265 1497414139 2188528357 7487070695 10942641785 28450868641 142254343205