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1419468661 = 13132182657
BaseRepresentation
bin101010010011011…
…0101111101110101
310122220222110221101
41110212311331311
510401340444121
6352504050101
750114166412
oct12446657565
93586873841
101419468661
116692868a6
12337463931
131981070b0
14d673d109
158493d491
hex549b5f75

1419468661 has 8 divisors (see below), whose sum is σ = 1529834264. Its totient is φ = 1309271040.

The previous prime is 1419468653. The next prime is 1419468671. The reversal of 1419468661 is 1668649141.

It can be written as a sum of positive squares in 4 ways, for example, as 331458436 + 1088010225 = 18206^2 + 32985^2 .

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 1419468661 - 23 = 1419468653 is a prime.

It is a super-2 number, since 2×14194686612 = 4029782559122265842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1419468671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24156 + ... + 58501.

It is an arithmetic number, because the mean of its divisors is an integer number (191229283).

Almost surely, 21419468661 is an apocalyptic number.

It is an amenable number.

1419468661 is a deficient number, since it is larger than the sum of its proper divisors (110365603).

1419468661 is a wasteful number, since it uses less digits than its factorization.

1419468661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83991.

The product of its digits is 248832, while the sum is 46.

The square root of 1419468661 is about 37675.8365666909. The cubic root of 1419468661 is about 1123.8506545937.

The spelling of 1419468661 in words is "one billion, four hundred nineteen million, four hundred sixty-eight thousand, six hundred sixty-one".

Divisors: 1 13 1321 17173 82657 1074541 109189897 1419468661