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144121318 = 21154112109
BaseRepresentation
bin10001001011100…
…01110111100110
3101001012010021121
420211301313212
5243343340233
622145004154
73400003525
oct1045616746
9331163247
10144121318
1174397530
124032365a
1323b211b3
14151d84bc
15c9bc92d
hex8971de6

144121318 has 16 divisors (see below), whose sum is σ = 236290320. Its totient is φ = 65383200.

The previous prime is 144121309. The next prime is 144121321. The reversal of 144121318 is 813121441.

It is a junction number, because it is equal to n+sod(n) for n = 144121292 and 144121301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5848 + ... + 17956.

It is an arithmetic number, because the mean of its divisors is an integer number (14768145).

Almost surely, 2144121318 is an apocalyptic number.

144121318 is a deficient number, since it is larger than the sum of its proper divisors (92169002).

144121318 is a wasteful number, since it uses less digits than its factorization.

144121318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12663.

The product of its digits is 768, while the sum is 25.

The square root of 144121318 is about 12005.0538524406. The cubic root of 144121318 is about 524.2954334060.

Adding to 144121318 its reverse (813121441), we get a palindrome (957242759).

The spelling of 144121318 in words is "one hundred forty-four million, one hundred twenty-one thousand, three hundred eighteen".

Divisors: 1 2 11 22 541 1082 5951 11902 12109 24218 133199 266398 6550969 13101938 72060659 144121318