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1430463689 = 7319799469
BaseRepresentation
bin101010101000011…
…0010010011001001
310200200200002021122
41111100302103021
510412144314224
6353535445025
750306512034
oct12520622311
93620602248
101430463689
116745065a6
1233b086775
1319a486825
14d7da201b
15858b115e
hex554324c9

1430463689 has 8 divisors (see below), whose sum is σ = 1457434440. Its totient is φ = 1403692416.

The previous prime is 1430463677. The next prime is 1430463701. The reversal of 1430463689 is 9863640341.

It is an interprime number because it is at equal distance from previous prime (1430463677) and next prime (1430463701).

It can be written as a sum of positive squares in 4 ways, for example, as 452838400 + 977625289 = 21280^2 + 31267^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1430463689 - 216 = 1430398153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1430463649) 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 7 ways as a sum of consecutive naturals, for example, 35354 + ... + 64115.

It is an arithmetic number, because the mean of its divisors is an integer number (182179305).

Almost surely, 21430463689 is an apocalyptic number.

It is an amenable number.

1430463689 is a deficient number, since it is larger than the sum of its proper divisors (26970751).

1430463689 is an equidigital number, since it uses as much as digits as its factorization.

1430463689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99739.

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 1430463689 is about 37821.4712696373. The cubic root of 1430463689 is about 1126.7449303829.

The spelling of 1430463689 in words is "one billion, four hundred thirty million, four hundred sixty-three thousand, six hundred eighty-nine".

Divisors: 1 73 197 14381 99469 7261237 19595393 1430463689