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144284145 = 359618943
BaseRepresentation
bin10001001100110…
…01100111110001
3101001111101122020
420212121213301
5243414043040
622152302053
73401252325
oct1046314761
9331441566
10144284145
11744988a5
12403a1929
1323b7a345
141523b985
15ca00cd0
hex89999f1

144284145 has 8 divisors (see below), whose sum is σ = 230854656. Its totient is φ = 76951536.

The previous prime is 144284123. The next prime is 144284149. The reversal of 144284145 is 541482441.

144284145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144284145 - 25 = 144284113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144284149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4809457 + ... + 4809486.

It is an arithmetic number, because the mean of its divisors is an integer number (28856832).

Almost surely, 2144284145 is an apocalyptic number.

144284145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144284145 is a deficient number, since it is larger than the sum of its proper divisors (86570511).

144284145 is an equidigital number, since it uses as much as digits as its factorization.

144284145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9618951.

The product of its digits is 20480, while the sum is 33.

The square root of 144284145 is about 12011.8335403052. The cubic root of 144284145 is about 524.4928072204.

The spelling of 144284145 in words is "one hundred forty-four million, two hundred eighty-four thousand, one hundred forty-five".

Divisors: 1 3 5 15 9618943 28856829 48094715 144284145