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141761988109 = 7171211398347
BaseRepresentation
bin1000010000000110101…
…1000100011000001101
3111112220122012011001001
42010001223010120031
54310312032104414
6145042523220301
713145665005610
oct2040153043015
9445818164031
10141761988109
1155136a45965
1223583977691
13104a2933401
146c0b64c177
153a4a76c074
hex2101ac460d

141761988109 has 16 divisors (see below), whose sum is σ = 171559824768. Its totient is φ = 114352008192.

The previous prime is 141761988101. The next prime is 141761988113. The reversal of 141761988109 is 901889167141.

It is a cyclic number.

It is not a de Polignac number, because 141761988109 - 23 = 141761988101 is a prime.

It is a super-2 number, since 2×1417619881092 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 141761988109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141761988101) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1392274 + ... + 1490620.

It is an arithmetic number, because the mean of its divisors is an integer number (10722489048).

Almost surely, 2141761988109 is an apocalyptic number.

It is an amenable number.

141761988109 is a deficient number, since it is larger than the sum of its proper divisors (29797836659).

141761988109 is a wasteful number, since it uses less digits than its factorization.

141761988109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110484.

The product of its (nonzero) digits is 870912, while the sum is 55.

The spelling of 141761988109 in words is "one hundred forty-one billion, seven hundred sixty-one million, nine hundred eighty-eight thousand, one hundred nine".

Divisors: 1 7 17 119 12113 84791 98347 205921 688429 1441447 1671899 11703293 1191277211 8338940477 20251712587 141761988109