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142730205236 = 22251142161559
BaseRepresentation
bin1000010011101101100…
…0100001100000110100
3111122102010001200020122
42010323120201200310
54314302413031421
6145322551351112
713211662504223
oct2047330414064
9448363050218
10142730205236
1155593530803
12237b4082498
13105c83c2c58
146ca0084cba
153aa57712ab
hex213b621834

142730205236 has 12 divisors (see below), whose sum is σ = 250772991840. Its totient is φ = 71080779000.

The previous prime is 142730205229. The next prime is 142730205269. The reversal of 142730205236 is 632502037241.

It is a super-2 number, since 2×1427302052362 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142730205196 and 142730205205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71079776 + ... + 71081783.

It is an arithmetic number, because the mean of its divisors is an integer number (20897749320).

Almost surely, 2142730205236 is an apocalyptic number.

It is an amenable number.

142730205236 is a deficient number, since it is larger than the sum of its proper divisors (108042786604).

142730205236 is a wasteful number, since it uses less digits than its factorization.

142730205236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142161814 (or 142161812 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The spelling of 142730205236 in words is "one hundred forty-two billion, seven hundred thirty million, two hundred five thousand, two hundred thirty-six".

Divisors: 1 2 4 251 502 1004 142161559 284323118 568646236 35682551309 71365102618 142730205236