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100144115456 = 2871115732359
BaseRepresentation
bin101110101000100001…
…1011110111100000000
3100120111012211011111012
41131101003132330000
53120043343143311
6114001111540052
710143443636120
oct1352103367400
9316435734435
10100144115456
113951a819190
12174aa08a628
13959c62b068
144bc0256c80
152911c0578b
hex17510def00

100144115456 has 144 divisors (see below), whose sum is σ = 250817441280. Its totient is φ = 38767472640.

The previous prime is 100144115443. The next prime is 100144115459. The reversal of 100144115456 is 654511441001.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100144115459) 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, 3078605 + ... + 3110963.

Almost surely, 2100144115456 is an apocalyptic number.

100144115456 is a gapful number since it is divisible by the number (16) 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 100144115456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125408720640).

100144115456 is an abundant number, since it is smaller than the sum of its proper divisors (150673325824).

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

100144115456 is a wasteful number, since it uses less digits than its factorization.

100144115456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32550 (or 32536 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

Adding to 100144115456 its reverse (654511441001), we get a palindrome (754655556457).

The spelling of 100144115456 in words is "one hundred billion, one hundred forty-four million, one hundred fifteen thousand, four hundred fifty-six".

Divisors: 1 2 4 7 8 11 14 16 22 28 32 44 56 64 77 88 112 128 154 157 176 224 256 308 314 352 448 616 628 704 896 1099 1232 1256 1408 1727 1792 2198 2464 2512 2816 3454 4396 4928 5024 6908 8792 9856 10048 12089 13816 17584 19712 20096 24178 27632 32359 35168 40192 48356 55264 64718 70336 96712 110528 129436 140672 193424 221056 226513 258872 281344 355949 386848 442112 453026 517744 711898 773696 906052 1035488 1423796 1547392 1812104 2070976 2491643 2847592 3094784 3624208 4141952 4983286 5080363 5695184 7248416 8283904 9966572 10160726 11390368 14496832 19933144 20321452 22780736 28993664 35562541 39866288 40642904 45561472 55883993 57987328 71125082 79732576 81285808 91122944 111767986 142250164 159465152 162571616 223535972 284500328 318930304 325143232 391187951 447071944 569000656 637860608 650286464 782375902 894143888 1138001312 1300572928 1564751804 1788287776 2276002624 3129503608 3576575552 4552005248 6259007216 7153151104 9104010496 12518014432 14306302208 25036028864 50072057728 100144115456