Search a number
-
+
144738883469 = 2571885929863
BaseRepresentation
bin1000011011001100011…
…1000001011110001101
3111211121002202002202202
42012303013001132031
54332411123232334
6150254144331245
713312523132045
oct2066307013615
9454532662682
10144738883469
1156424365464
1224074913b25
13108585b835b
147010b5c725
153b71c9a17e
hex21b31c178d

144738883469 has 8 divisors (see below), whose sum is σ = 145314640320. Its totient is φ = 144163224576.

The previous prime is 144738883379. The next prime is 144738883493. The reversal of 144738883469 is 964388837441.

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 144738883469 - 220 = 144737834893 is a prime.

It is a super-2 number, since 2×1447388834692 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144738883769) 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, 4831832 + ... + 4861694.

It is an arithmetic number, because the mean of its divisors is an integer number (18164330040).

Almost surely, 2144738883469 is an apocalyptic number.

It is an amenable number.

144738883469 is a deficient number, since it is larger than the sum of its proper divisors (575756851).

144738883469 is a wasteful number, since it uses less digits than its factorization.

144738883469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48979.

The product of its digits is 111476736, while the sum is 65.

The spelling of 144738883469 in words is "one hundred forty-four billion, seven hundred thirty-eight million, eight hundred eighty-three thousand, four hundred sixty-nine".

Divisors: 1 257 18859 29863 4846763 7674791 563186317 144738883469