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144955571318488 = 23749143571209979
BaseRepresentation
bin100000111101011000011001…
…010101100010111011011000
3201000020121122222221210120201
4200331120121111202323120
5122444423002224142423
61232143400430431544
742350460121344430
oct4075303125427330
9630217588853521
10144955571318488
11422073490307a7
121431143b6625b4
1362b63370595b8
1427b1c5c2432c0
1511b59615242ad
hex83d619562ed8

144955571318488 has 64 divisors (see below), whose sum is σ = 311323401273600. Its totient is φ = 61983010615680.

The previous prime is 144955571318461. The next prime is 144955571318531. The reversal of 144955571318488 is 884813175559441.

It is a super-2 number, since 2×1449555713184882 (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144955571318488.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119195083 + ... + 120405061.

It is an arithmetic number, because the mean of its divisors is an integer number (4864428144900).

Almost surely, 2144955571318488 is an apocalyptic number.

It is an amenable number.

144955571318488 is an abundant number, since it is smaller than the sum of its proper divisors (166367829955112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144955571318488 is a wasteful number, since it uses less digits than its factorization.

144955571318488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214840 (or 1214836 counting only the distinct ones).

The product of its digits is 774144000, while the sum is 73.

The spelling of 144955571318488 in words is "one hundred forty-four trillion, nine hundred fifty-five billion, five hundred seventy-one million, three hundred eighteen thousand, four hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 56 491 982 1964 3437 3928 4357 6874 8714 13748 17428 27496 30499 34856 60998 121996 243992 1209979 2139287 2419958 4278574 4839916 8469853 8557148 9679832 14975009 16939706 17114296 29950018 33879412 59900036 67758824 119800072 594099689 1188199378 2376398756 4158697823 4752797512 5271878503 8317395646 10543757006 16634791292 21087514012 33269582584 36903149521 42175028024 73806299042 147612598084 295225196168 2588492344973 5176984689946 10353969379892 18119446414811 20707938759784 36238892829622 72477785659244 144955571318488