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144780352 = 269972269
BaseRepresentation
bin10001010000100…
…10110001000000
3101002102121022021
420220102301000
5244030432402
622211051224
73405420103
oct1050226100
9332377267
10144780352
11747a7692
12405a0b14
1323cc2162
141532a73a
15ca9cd37
hex8a12c40

144780352 has 28 divisors (see below), whose sum is σ = 287713420. Its totient is φ = 72285696.

The previous prime is 144780329. The next prime is 144780353. The reversal of 144780352 is 253087441.

144780352 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 59845696 + 84934656 = 7736^2 + 9216^2 .

It is a super-2 number, since 2×1447803522 = 41922700650487808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144780353) 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, 62674 + ... + 64942.

Almost surely, 2144780352 is an apocalyptic number.

It is an amenable number.

144780352 is a deficient number, since it is larger than the sum of its proper divisors (142933068).

144780352 is an equidigital number, since it uses as much as digits as its factorization.

144780352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278 (or 3268 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 144780352 is about 12032.4707354724. The cubic root of 144780352 is about 525.0933796107.

The spelling of 144780352 in words is "one hundred forty-four million, seven hundred eighty thousand, three hundred fifty-two".

Divisors: 1 2 4 8 16 32 64 997 1994 2269 3988 4538 7976 9076 15952 18152 31904 36304 63808 72608 145216 2262193 4524386 9048772 18097544 36195088 72390176 144780352