Search a number
-
+
144879654068 = 22317116456117
BaseRepresentation
bin1000011011101110000…
…0000001010010110100
3111211221220121222201122
42012323200001102310
54333203142412233
6150320133443112
713316152512002
oct2067340012264
9454856558648
10144879654068
11564968734a6
12240b3aa0498
131087b805376
147025723a72
153b7e304d98
hex21bb8014b4

144879654068 has 24 divisors (see below), whose sum is σ = 265404271104. Its totient is φ = 69115687200.

The previous prime is 144879654067. The next prime is 144879654079. The reversal of 144879654068 is 860456978441.

It is a happy number.

It is a super-2 number, since 2×1448796540682 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 144879654068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144879654067) 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, 8219255 + ... + 8236862.

It is an arithmetic number, because the mean of its divisors is an integer number (11058511296).

Almost surely, 2144879654068 is an apocalyptic number.

It is an amenable number.

144879654068 is a deficient number, since it is larger than the sum of its proper divisors (120524617036).

144879654068 is a wasteful number, since it uses less digits than its factorization.

144879654068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16456223 (or 16456221 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 62.

The spelling of 144879654068 in words is "one hundred forty-four billion, eight hundred seventy-nine million, six hundred fifty-four thousand, sixty-eight".

Divisors: 1 2 4 31 62 71 124 142 284 2201 4402 8804 16456117 32912234 65824468 510139627 1020279254 1168384307 2040558508 2336768614 4673537228 36219913517 72439827034 144879654068