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144515245 = 574129007
BaseRepresentation
bin10001001110100…
…10000010101101
3101001221010122111
420213102002231
5243443441440
622201244021
73403234150
oct1047220255
9331833574
10144515245
1174636496
1240493611
1323c2b5a4
141529bc97
15ca494ea
hex89d20ad

144515245 has 8 divisors (see below), whose sum is σ = 198192384. Its totient is φ = 99096144.

The previous prime is 144515243. The next prime is 144515251. The reversal of 144515245 is 542515441.

It is a happy number.

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

It is not a de Polignac number, because 144515245 - 21 = 144515243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144515243) 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, 2064469 + ... + 2064538.

It is an arithmetic number, because the mean of its divisors is an integer number (24774048).

Almost surely, 2144515245 is an apocalyptic number.

It is an amenable number.

144515245 is a deficient number, since it is larger than the sum of its proper divisors (53677139).

144515245 is an equidigital number, since it uses as much as digits as its factorization.

144515245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4129019.

The product of its digits is 16000, while the sum is 31.

The square root of 144515245 is about 12021.4493718520. The cubic root of 144515245 is about 524.7726846596.

The spelling of 144515245 in words is "one hundred forty-four million, five hundred fifteen thousand, two hundred forty-five".

Divisors: 1 5 7 35 4129007 20645035 28903049 144515245