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6474427444 = 221618606861
BaseRepresentation
bin1100000011110011…
…11110110000110100
3121201012202222210001
412001321332300310
5101224423134234
62550241241044
7316304503522
oct60171766064
917635688701
106474427444
112822711191
121308333184
137c2469174
14455c29312
1527d5edd14
hex181e7ec34

6474427444 has 6 divisors (see below), whose sum is σ = 11330248034. Its totient is φ = 3237213720.

The previous prime is 6474427439. The next prime is 6474427447. The reversal of 6474427444 is 4447244746.

It can be written as a sum of positive squares in only one way, i.e., 3574604944 + 2899822500 = 59788^2 + 53850^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6474427394 and 6474427403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6474427447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 809303427 + ... + 809303434.

Almost surely, 26474427444 is an apocalyptic number.

It is an amenable number.

6474427444 is a deficient number, since it is larger than the sum of its proper divisors (4855820590).

6474427444 is a wasteful number, since it uses less digits than its factorization.

6474427444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618606865 (or 1618606863 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 46.

The square root of 6474427444 is about 80463.8269286268. The cubic root of 6474427444 is about 1863.8049297143.

The spelling of 6474427444 in words is "six billion, four hundred seventy-four million, four hundred twenty-seven thousand, four hundred forty-four".

Divisors: 1 2 4 1618606861 3237213722 6474427444