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144061660 = 22514594937
BaseRepresentation
bin10001001011000…
…11010011011100
3101001002002110001
420211203103130
5243334433120
622143424044
73366334561
oct1045432334
9331062401
10144061660
1174356726
12402b5024
1323acccb2
14151c0868
15c9a9e0a
hex89634dc

144061660 has 24 divisors (see below), whose sum is σ = 302798160. Its totient is φ = 57573504.

The previous prime is 144061651. The next prime is 144061663. The reversal of 144061660 is 66160441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144061663) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26712 + ... + 31648.

It is an arithmetic number, because the mean of its divisors is an integer number (12616590).

Almost surely, 2144061660 is an apocalyptic number.

144061660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144061660 is an abundant number, since it is smaller than the sum of its proper divisors (158736500).

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

144061660 is a wasteful number, since it uses less digits than its factorization.

144061660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6405 (or 6403 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 144061660 is about 12002.5688916998. The cubic root of 144061660 is about 524.2230806266.

The spelling of 144061660 in words is "one hundred forty-four million, sixty-one thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 1459 2918 4937 5836 7295 9874 14590 19748 24685 29180 49370 98740 7203083 14406166 28812332 36015415 72030830 144061660