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1442200660 = 225173416821
BaseRepresentation
bin101010111110110…
…0011110001010100
310201111202101101021
41111331203301110
510423200410120
6355035210524
750511334435
oct12575436124
93644671337
101442200660
116800a277a
12342ba6a44
1319ca35b94
14d977948c
158692daaa
hex55f63c54

1442200660 has 24 divisors (see below), whose sum is σ = 3046135176. Its totient is φ = 573544320.

The previous prime is 1442200637. The next prime is 1442200663. The reversal of 1442200660 is 660022441.

It can be written as a sum of positive squares in 4 ways, for example, as 78818884 + 1363381776 = 8878^2 + 36924^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442200663) 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 in 7 ways as a sum of consecutive naturals, for example, 204951 + ... + 211870.

It is an arithmetic number, because the mean of its divisors is an integer number (126922299).

Almost surely, 21442200660 is an apocalyptic number.

1442200660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1442200660 is an abundant number, since it is smaller than the sum of its proper divisors (1603934516).

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

1442200660 is a wasteful number, since it uses less digits than its factorization.

1442200660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417003 (or 417001 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1442200660 is about 37976.3170936835. The cubic root of 1442200660 is about 1129.8181919629.

The spelling of 1442200660 in words is "one billion, four hundred forty-two million, two hundred thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 173 346 692 865 1730 3460 416821 833642 1667284 2084105 4168210 8336420 72110033 144220066 288440132 360550165 721100330 1442200660