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144213355 = 511131011997
BaseRepresentation
bin10001001100010…
…00010101101011
3101001100210112101
420212020111223
5243404311410
622150554231
73400536046
oct1046102553
9331323471
10144213355
117444a6a0
1240368977
1323b54060
141521dc5d
15c9d9d3a
hex898856b

144213355 has 32 divisors (see below), whose sum is σ = 205426368. Its totient is φ = 95808000.

The previous prime is 144213353. The next prime is 144213361. The reversal of 144213355 is 553312441.

It is not a de Polignac number, because 144213355 - 21 = 144213353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144213353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71217 + ... + 73213.

It is an arithmetic number, because the mean of its divisors is an integer number (6419574).

Almost surely, 2144213355 is an apocalyptic number.

144213355 is a deficient number, since it is larger than the sum of its proper divisors (61213013).

144213355 is a wasteful number, since it uses less digits than its factorization.

144213355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2127.

The product of its digits is 7200, while the sum is 28.

The square root of 144213355 is about 12008.8865012540. The cubic root of 144213355 is about 524.4070160439.

Adding to 144213355 its reverse (553312441), we get a palindrome (697525796).

The spelling of 144213355 in words is "one hundred forty-four million, two hundred thirteen thousand, three hundred fifty-five".

Divisors: 1 5 11 13 55 65 101 143 505 715 1111 1313 1997 5555 6565 9985 14443 21967 25961 72215 109835 129805 201697 285571 1008485 1427855 2218667 2622061 11093335 13110305 28842671 144213355