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1431419665 = 51349144851
BaseRepresentation
bin101010101010001…
…1011101100010001
310200202110122122011
41111110123230101
510412420412130
6354012142521
750320603114
oct12524335421
93622418564
101431419665
11674aa9865
1233b467a41
1319a72c9b0
14d817057b
15859ee52a
hex5551bb11

1431419665 has 16 divisors (see below), whose sum is σ = 1853643456. Its totient is φ = 1054872000.

The previous prime is 1431419657. The next prime is 1431419677. The reversal of 1431419665 is 5669141341.

It is not a de Polignac number, because 1431419665 - 23 = 1431419657 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, 9490 + ... + 54340.

It is an arithmetic number, because the mean of its divisors is an integer number (115852716).

Almost surely, 21431419665 is an apocalyptic number.

It is an amenable number.

1431419665 is a deficient number, since it is larger than the sum of its proper divisors (422223791).

1431419665 is a wasteful number, since it uses less digits than its factorization.

1431419665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45360.

The product of its digits is 77760, while the sum is 40.

The square root of 1431419665 is about 37834.1071653607. The cubic root of 1431419665 is about 1126.9958749446.

The spelling of 1431419665 in words is "one billion, four hundred thirty-one million, four hundred nineteen thousand, six hundred sixty-five".

Divisors: 1 5 13 65 491 2455 6383 31915 44851 224255 583063 2915315 22021841 110109205 286283933 1431419665