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1441399964 = 221918965789
BaseRepresentation
bin101010111101010…
…0000010010011100
310201110020201000212
41111322200102130
510422444244324
6355010111552
750501461154
oct12572402234
93643221025
101441399964
1167a6a6144
1234287b5b8
1319c8155b4
14d960b764
158682170e
hex55ea049c

1441399964 has 12 divisors (see below), whose sum is σ = 2655210600. Its totient is φ = 682768368.

The previous prime is 1441399957. The next prime is 1441399969. The reversal of 1441399964 is 4699931441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1441399969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9482819 + ... + 9482970.

It is an arithmetic number, because the mean of its divisors is an integer number (221267550).

Almost surely, 21441399964 is an apocalyptic number.

It is an amenable number.

1441399964 is a deficient number, since it is larger than the sum of its proper divisors (1213810636).

1441399964 is a wasteful number, since it uses less digits than its factorization.

1441399964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18965812 (or 18965810 counting only the distinct ones).

The product of its digits is 839808, while the sum is 50.

The square root of 1441399964 is about 37965.7735862184. The cubic root of 1441399964 is about 1129.6090651750.

The spelling of 1441399964 in words is "one billion, four hundred forty-one million, three hundred ninety-nine thousand, nine hundred sixty-four".

Divisors: 1 2 4 19 38 76 18965789 37931578 75863156 360349991 720699982 1441399964