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1282230468 = 223235617513
BaseRepresentation
bin100110001101101…
…0100100011000100
310022100202001112100
41030123110203010
510111222333333
6331122352100
743526531151
oct11433244304
93270661470
101282230468
115a8870802
122b94bb630
13175855b6c
14c2417228
1577880213
hex4c6d48c4

1282230468 has 18 divisors (see below), whose sum is σ = 3241193774. Its totient is φ = 427410144.

The previous prime is 1282230437. The next prime is 1282230503. The reversal of 1282230468 is 8640322821.

It can be written as a sum of positive squares in only one way, i.e., 1224440064 + 57790404 = 34992^2 + 7602^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×12822304682 = 3288229946134998048, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 35617513 = 1282230468 / (1 + 2 + 8 + 2 + 2 + 3 + 0 + 4 + 6 + 8).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 17808721 + ... + 17808792.

Almost surely, 21282230468 is an apocalyptic number.

1282230468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1282230468 is an abundant number, since it is smaller than the sum of its proper divisors (1958963306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1282230468 is a wasteful number, since it uses less digits than its factorization.

1282230468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35617523 (or 35617518 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 1282230468 is about 35808.2458101483. The cubic root of 1282230468 is about 1086.3973495875.

The spelling of 1282230468 in words is "one billion, two hundred eighty-two million, two hundred thirty thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 35617513 71235026 106852539 142470052 213705078 320557617 427410156 641115234 1282230468