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144285872879 = 1753113159799
BaseRepresentation
bin1000011001100000011…
…0111011001011101111
3111210102112022210001202
42012120012323023233
54330444140413004
6150141203000115
713265352453341
oct2063006731357
9453375283052
10144285872879
1156211682945
1223b6906903b
13107b57a6255
146daa919291
153b47114b1e
hex21981bb2ef

144285872879 has 8 divisors (see below), whose sum is σ = 152777109600. Its totient is φ = 135795062016.

The previous prime is 144285872873. The next prime is 144285872881. The reversal of 144285872879 is 978278582441.

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-144285872879 is a prime.

It is a super-2 number, since 2×1442858728792 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144285872873) 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, 823022 + ... + 982820.

It is an arithmetic number, because the mean of its divisors is an integer number (19097138700).

Almost surely, 2144285872879 is an apocalyptic number.

144285872879 is a deficient number, since it is larger than the sum of its proper divisors (8491236721).

144285872879 is a wasteful number, since it uses less digits than its factorization.

144285872879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212929.

The product of its digits is 72253440, while the sum is 65.

The spelling of 144285872879 in words is "one hundred forty-four billion, two hundred eighty-five million, eight hundred seventy-two thousand, eight hundred seventy-nine".

Divisors: 1 17 53113 159799 902921 2716583 8487404287 144285872879