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144508205 = 5193149069
BaseRepresentation
bin10001001110100…
…00010100101101
3101001220202222202
420213100110231
5243443230310
622201151245
73403204502
oct1047202455
9331822882
10144508205
1174631176
124048b525
1323c2831a
14152994a9
15ca473a5
hex89d052d

144508205 has 16 divisors (see below), whose sum is σ = 188428800. Its totient is φ = 105986880.

The previous prime is 144508201. The next prime is 144508249. The reversal of 144508205 is 502805441.

It is not a de Polignac number, because 144508205 - 22 = 144508201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144508201) 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, 21590 + ... + 27479.

It is an arithmetic number, because the mean of its divisors is an integer number (11776800).

Almost surely, 2144508205 is an apocalyptic number.

It is an amenable number.

144508205 is a deficient number, since it is larger than the sum of its proper divisors (43920595).

144508205 is a wasteful number, since it uses less digits than its factorization.

144508205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49124.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 144508205 is about 12021.1565583350. The cubic root of 144508205 is about 524.7641631603.

The spelling of 144508205 in words is "one hundred forty-four million, five hundred eight thousand, two hundred five".

Divisors: 1 5 19 31 95 155 589 2945 49069 245345 932311 1521139 4661555 7605695 28901641 144508205