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1430197661465 = 51572903362753
BaseRepresentation
bin10100110011111110011…
…011000110111100011001
312001201120221012221101222
4110303332123012330121
5141413021100131330
63013005043221425
7205220426353256
oct24637633067431
95051527187358
101430197661465
115015a8327301
121b1222377875
13a4b36c17a01
144d316dc842d
15273092d00e5
hex14cfe6c6f19

1430197661465 has 16 divisors (see below), whose sum is σ = 1727255654928. Its totient is φ = 1136813223936.

The previous prime is 1430197661371. The next prime is 1430197661479. The reversal of 1430197661465 is 5641667910341.

It can be written as a sum of positive squares in 8 ways, for example, as 78940207369 + 1351257454096 = 280963^2 + 1162436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1430197661465 - 214 = 1430197645081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22759529 + ... + 22822281.

It is an arithmetic number, because the mean of its divisors is an integer number (107953478433).

Almost surely, 21430197661465 is an apocalyptic number.

It is an amenable number.

1430197661465 is a deficient number, since it is larger than the sum of its proper divisors (297057993463).

1430197661465 is a wasteful number, since it uses less digits than its factorization.

1430197661465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91948.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 1430197661465 in words is "one trillion, four hundred thirty billion, one hundred ninety-seven million, six hundred sixty-one thousand, four hundred sixty-five".

Divisors: 1 5 157 785 29033 62753 145165 313765 4558181 9852221 22790905 49261105 1821907849 9109539245 286039532293 1430197661465