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144105412 = 221110930047
BaseRepresentation
bin10001001011011…
…01111111000100
3101001011022110111
420211231333010
5243342333122
622144402404
73366606253
oct1045557704
9331138414
10144105412
1174386590
1240316404
1323b16b99
14151d279a
15c9b7d77
hex896dfc4

144105412 has 24 divisors (see below), whose sum is σ = 277643520. Its totient is φ = 64899360.

The previous prime is 144105389. The next prime is 144105421. The reversal of 144105412 is 214501441.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 10228 + ... + 19819.

It is an arithmetic number, because the mean of its divisors is an integer number (11568480).

Almost surely, 2144105412 is an apocalyptic number.

It is an amenable number.

144105412 is a deficient number, since it is larger than the sum of its proper divisors (133538108).

144105412 is a wasteful number, since it uses less digits than its factorization.

144105412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30171 (or 30169 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 144105412 is about 12004.3913631637. The cubic root of 144105412 is about 524.2761446797.

Adding to 144105412 its reverse (214501441), we get a palindrome (358606853).

The spelling of 144105412 in words is "one hundred forty-four million, one hundred five thousand, four hundred twelve".

Divisors: 1 2 4 11 22 44 109 218 436 1199 2398 4796 30047 60094 120188 330517 661034 1322068 3275123 6550246 13100492 36026353 72052706 144105412