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144809161253 = 1393073393461
BaseRepresentation
bin1000011011011101001…
…1000111001000100101
3111211202222222120202122
42012313103013020211
54333032121130003
6150305134515325
713314335363411
oct2066723071045
9454688876678
10144809161253
115645aaa6179
1224094365b45
131086a023443
14701a213d41
153b7802d238
hex21b74c7225

144809161253 has 8 divisors (see below), whose sum is σ = 146326081440. Its totient is φ = 143299028880.

The previous prime is 144809161177. The next prime is 144809161279. The reversal of 144809161253 is 352161908441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-144809161253 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 (144809161853) 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, 1654058 + ... + 1739403.

It is an arithmetic number, because the mean of its divisors is an integer number (18290760180).

Almost surely, 2144809161253 is an apocalyptic number.

It is an amenable number.

144809161253 is a deficient number, since it is larger than the sum of its proper divisors (1516920187).

144809161253 is a wasteful number, since it uses less digits than its factorization.

144809161253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3393907.

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 144809161253 in words is "one hundred forty-four billion, eight hundred nine million, one hundred sixty-one thousand, two hundred fifty-three".

Divisors: 1 139 307 42673 3393461 471691079 1041792527 144809161253