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144163553 = 17291911531
BaseRepresentation
bin10001001011111…
…00001011100001
3101001021021012212
420211330023201
5243401213203
622145531505
73400240622
oct1045741341
9331237185
10144163553
1174416236
1240343b95
1323b374a1
1415209a49
15c9ca1d8
hex897c2e1

144163553 has 16 divisors (see below), whose sum is σ = 158837760. Its totient is φ = 130233600.

The previous prime is 144163543. The next prime is 144163559. The reversal of 144163553 is 355361441.

It is not a de Polignac number, because 144163553 - 214 = 144147169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144163559) 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 15 ways as a sum of consecutive naturals, for example, 93398 + ... + 94928.

It is an arithmetic number, because the mean of its divisors is an integer number (9927360).

Almost surely, 2144163553 is an apocalyptic number.

It is an amenable number.

144163553 is a deficient number, since it is larger than the sum of its proper divisors (14674207).

144163553 is a wasteful number, since it uses less digits than its factorization.

144163553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768.

The product of its digits is 21600, while the sum is 32.

The square root of 144163553 is about 12006.8127744210. The cubic root of 144163553 is about 524.3466436299.

The spelling of 144163553 in words is "one hundred forty-four million, one hundred sixty-three thousand, five hundred fifty-three".

Divisors: 1 17 29 191 493 1531 3247 5539 26027 44399 94163 292421 754783 4971157 8480209 144163553