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144144018291 = 3721375428581
BaseRepresentation
bin1000011000111110100…
…1110010101101110011
3111210001122101211011010
42012033221302231303
54330201332041131
6150115134322003
713262010640200
oct2061751625563
9453048354133
10144144018291
11561495a4449
1223b29659303
1310792299a20
146d95b50ca7
153b39943b46
hex218fa72b73

144144018291 has 24 divisors (see below), whose sum is σ = 240768033744. Its totient is φ = 76032008640.

The previous prime is 144144018259. The next prime is 144144018373. The reversal of 144144018291 is 192810441441.

It is not a de Polignac number, because 144144018291 - 25 = 144144018259 is a prime.

It is a super-2 number, since 2×1441440182912 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (144144018211) 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, 37712380 + ... + 37716201.

It is an arithmetic number, because the mean of its divisors is an integer number (10032001406).

Almost surely, 2144144018291 is an apocalyptic number.

144144018291 is a deficient number, since it is larger than the sum of its proper divisors (96624015453).

144144018291 is a wasteful number, since it uses less digits than its factorization.

144144018291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75428611 (or 75428604 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The spelling of 144144018291 in words is "one hundred forty-four billion, one hundred forty-four million, eighteen thousand, two hundred ninety-one".

Divisors: 1 3 7 13 21 39 49 91 147 273 637 1911 75428581 226285743 528000067 980571553 1584000201 2941714659 3696000469 6864000871 11088001407 20592002613 48048006097 144144018291