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144757317440 = 26517222111981
BaseRepresentation
bin1000011011010000110…
…1010101111101000000
3111211122101102122102102
42012310031111331000
54332430333124230
6150300043405532
713313135616311
oct2066415257500
9454571378372
10144757317440
115643380614a
122407ab238a8
131085c370a28
14701339a608
153b736dc045
hex21b4355f40

144757317440 has 112 divisors (see below), whose sum is σ = 365174838864. Its totient is φ = 54467788800.

The previous prime is 144757317437. The next prime is 144757317443. The reversal of 144757317440 is 44713757441.

It is an interprime number because it is at equal distance from previous prime (144757317437) and next prime (144757317443).

It can be written as a sum of positive squares in 8 ways, for example, as 29581248064 + 115176069376 = 171992^2 + 339376^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144757317443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12076250 + ... + 12088230.

Almost surely, 2144757317440 is an apocalyptic number.

144757317440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144757317440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182587419432).

144757317440 is an abundant number, since it is smaller than the sum of its proper divisors (220417521424).

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

144757317440 is a wasteful number, since it uses less digits than its factorization.

144757317440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14236 (or 14226 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 47.

The spelling of 144757317440 in words is "one hundred forty-four billion, seven hundred fifty-seven million, three hundred seventeen thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 17 20 32 34 40 64 68 80 85 136 160 170 272 320 340 544 680 1088 1360 2221 2720 4442 5440 8884 11105 11981 17768 22210 23962 35536 37757 44420 47924 59905 71072 75514 88840 95848 119810 142144 151028 177680 188785 191696 203677 239620 302056 355360 377570 383392 407354 479240 604112 710720 755140 766784 814708 958480 1018385 1208224 1510280 1629416 1916960 2036770 2416448 3020560 3258832 3833920 4073540 6041120 6517664 8147080 12082240 13035328 16294160 26609801 32588320 53219602 65176640 106439204 133049005 212878408 266098010 425756816 452366617 532196020 851513632 904733234 1064392040 1703027264 1809466468 2128784080 2261833085 3618932936 4257568160 4523666170 7237865872 8515136320 9047332340 14475731744 18094664680 28951463488 36189329360 72378658720 144757317440