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144656109 = 32137871571
BaseRepresentation
bin10001001111101…
…00011011101101
3101002012021212200
420213310123231
5244012443414
622204252113
73404361633
oct1047643355
9332167780
10144656109
1174722304
1240541039
1323c7a740
14152d7353
15ca76109
hex89f46ed

144656109 has 24 divisors (see below), whose sum is σ = 225449952. Its totient is φ = 88849440.

The previous prime is 144656107. The next prime is 144656117. The reversal of 144656109 is 901656441.

It is not a de Polignac number, because 144656109 - 21 = 144656107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144656107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91294 + ... + 92864.

It is an arithmetic number, because the mean of its divisors is an integer number (9393748).

Almost surely, 2144656109 is an apocalyptic number.

It is an amenable number.

144656109 is a deficient number, since it is larger than the sum of its proper divisors (80793843).

144656109 is a wasteful number, since it uses less digits than its factorization.

144656109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377 (or 2374 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 144656109 is about 12027.3068057650. The cubic root of 144656109 is about 524.9431339768.

The spelling of 144656109 in words is "one hundred forty-four million, six hundred fifty-six thousand, one hundred nine".

Divisors: 1 3 9 13 39 117 787 1571 2361 4713 7083 10231 14139 20423 30693 61269 92079 183807 1236377 3709131 11127393 16072901 48218703 144656109