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144143432 = 2318017929
BaseRepresentation
bin10001001011101…
…11010001001000
3101001020020121122
420211313101020
5243400042212
622145254412
73400125146
oct1045672110
9331206548
10144143432
1174402104
1240334408
1323b2b294
1415202596
15c9c4272
hex8977448

144143432 has 8 divisors (see below), whose sum is σ = 270268950. Its totient is φ = 72071712.

The previous prime is 144143423. The next prime is 144143449. The reversal of 144143432 is 234341441.

It can be written as a sum of positive squares in only one way, i.e., 93818596 + 50324836 = 9686^2 + 7094^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9008957 + ... + 9008972.

Almost surely, 2144143432 is an apocalyptic number.

It is an amenable number.

144143432 is a deficient number, since it is larger than the sum of its proper divisors (126125518).

144143432 is a wasteful number, since it uses less digits than its factorization.

144143432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18017935 (or 18017931 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 144143432 is about 12005.9748458840. The cubic root of 144143432 is about 524.3222480286.

Adding to 144143432 its reverse (234341441), we get a palindrome (378484873).

The spelling of 144143432 in words is "one hundred forty-four million, one hundred forty-three thousand, four hundred thirty-two".

Divisors: 1 2 4 8 18017929 36035858 72071716 144143432