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144872117 = 1343259163
BaseRepresentation
bin10001010001010…
…01001010110101
3101002121021011222
420220221022311
5244041401432
622213040125
73406251455
oct1050511265
9332537158
10144872117
117485a625
1240626045
1324024b60
1415351d65
15caba112
hex8a292b5

144872117 has 8 divisors (see below), whose sum is σ = 159645024. Its totient is φ = 130617648.

The previous prime is 144872111. The next prime is 144872137. The reversal of 144872117 is 711278441.

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

It is a cyclic number.

It is not a de Polignac number, because 144872117 - 26 = 144872053 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 (144872111) 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, 129023 + ... + 130140.

It is an arithmetic number, because the mean of its divisors is an integer number (19955628).

Almost surely, 2144872117 is an apocalyptic number.

It is an amenable number.

144872117 is a deficient number, since it is larger than the sum of its proper divisors (14772907).

144872117 is a wasteful number, since it uses less digits than its factorization.

144872117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259219.

The product of its digits is 12544, while the sum is 35.

The square root of 144872117 is about 12036.2833549231. The cubic root of 144872117 is about 525.2042947927.

The spelling of 144872117 in words is "one hundred forty-four million, eight hundred seventy-two thousand, one hundred seventeen".

Divisors: 1 13 43 559 259163 3369119 11144009 144872117