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120210009985 = 5131849384769
BaseRepresentation
bin110111111110100010…
…0110010111110000001
3102111021122100020001001
41233331010302332001
53432142230304420
6131120153412001
711453626140262
oct1577504627601
9374248306031
10120210009985
1146a8746479a
121b36a10a001
13b449867930
145b651b2969
1531d863ab0a
hex1bfd132f81

120210009985 has 8 divisors (see below), whose sum is σ = 155348320680. Its totient is φ = 88770468864.

The previous prime is 120210009949. The next prime is 120210009991. The reversal of 120210009985 is 589900012021.

It can be written as a sum of positive squares in 4 ways, for example, as 516152961 + 119693857024 = 22719^2 + 345968^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120210009985 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924692320 + ... + 924692449.

It is an arithmetic number, because the mean of its divisors is an integer number (19418540085).

Almost surely, 2120210009985 is an apocalyptic number.

It is an amenable number.

120210009985 is a deficient number, since it is larger than the sum of its proper divisors (35138310695).

120210009985 is a wasteful number, since it uses less digits than its factorization.

120210009985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849384787.

The product of its (nonzero) digits is 12960, while the sum is 37.

The spelling of 120210009985 in words is "one hundred twenty billion, two hundred ten million, nine thousand, nine hundred eighty-five".

Divisors: 1 5 13 65 1849384769 9246923845 24042001997 120210009985