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144471668 = 221119612833
BaseRepresentation
bin10001001110001…
…11011001110100
3101001211220212112
420213013121310
5243441043133
622200310152
73402663125
oct1047073164
9331756775
10144471668
1174606780
1240472358
1323c147c3
141528a04c
15ca3b648
hex89c7674

144471668 has 48 divisors (see below), whose sum is σ = 295189440. Its totient is φ = 61171200.

The previous prime is 144471667. The next prime is 144471689. The reversal of 144471668 is 866174441.

144471668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144471667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49580 + ... + 52412.

It is an arithmetic number, because the mean of its divisors is an integer number (6149780).

Almost surely, 2144471668 is an apocalyptic number.

It is an amenable number.

144471668 is an abundant number, since it is smaller than the sum of its proper divisors (150717772).

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

144471668 is a wasteful number, since it uses less digits than its factorization.

144471668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2928 (or 2926 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 144471668 is about 12019.6367665583. The cubic root of 144471668 is about 524.7199328589.

The spelling of 144471668 in words is "one hundred forty-four million, four hundred seventy-one thousand, six hundred sixty-eight".

Divisors: 1 2 4 11 19 22 38 44 61 76 122 209 244 418 671 836 1159 1342 2318 2684 2833 4636 5666 11332 12749 25498 31163 50996 53827 62326 107654 124652 172813 215308 345626 592097 691252 1184194 1900943 2368388 3283447 3801886 6566894 7603772 13133788 36117917 72235834 144471668