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144345252 = 22326634517
BaseRepresentation
bin10001001101010…
…00100010100100
3101001121111110110
420212220202210
5243423022002
622153453020
73401625432
oct1046504244
9331544413
10144345252
117452a7a7
1240411170
1323b9c0bc
1415255d52
15ca13e6c
hex89a88a4

144345252 has 24 divisors (see below), whose sum is σ = 337006656. Its totient is φ = 48086368.

The previous prime is 144345241. The next prime is 144345259. The reversal of 144345252 is 252543441.

It is not an unprimeable number, because it can be changed into a prime (144345259) 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, 29698 + ... + 34214.

It is an arithmetic number, because the mean of its divisors is an integer number (14041944).

Almost surely, 2144345252 is an apocalyptic number.

144345252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144345252 is an abundant number, since it is smaller than the sum of its proper divisors (192661404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144345252 is a wasteful number, since it uses less digits than its factorization.

144345252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7187 (or 7185 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 144345252 is about 12014.3768877125. The cubic root of 144345252 is about 524.5668408998.

Adding to 144345252 its reverse (252543441), we get a palindrome (396888693).

The spelling of 144345252 in words is "one hundred forty-four million, three hundred forty-five thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 2663 4517 5326 7989 9034 10652 13551 15978 18068 27102 31956 54204 12028771 24057542 36086313 48115084 72172626 144345252