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2020231312 = 2411172331947
BaseRepresentation
bin111100001101010…
…0100100010010000
312012210102101100221
41320122210202100
513114134400222
6532244322424
7101030453131
oct17032444220
95183371327
102020231312
11947405760
124846a3414
1326270bb58
14152443c88
15bc55c0c7
hex786a4890

2020231312 has 160 divisors (see below), whose sum is σ = 4875116544. Its totient is φ = 799180800.

The previous prime is 2020231307. The next prime is 2020231333. The reversal of 2020231312 is 2131320202.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2132823 + ... + 2133769.

Almost surely, 22020231312 is an apocalyptic number.

2020231312 is a gapful number since it is divisible by the number (22) 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 2020231312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2437558272).

2020231312 is an abundant number, since it is smaller than the sum of its proper divisors (2854885232).

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

2020231312 is a wasteful number, since it uses less digits than its factorization.

2020231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2020231312 is about 44946.9833470501. The cubic root of 2020231312 is about 1264.1551143561.

Adding to 2020231312 its reverse (2131320202), we get a palindrome (4151551514).

It can be divided in two parts, 2020 and 231312, that added together give a palindrome (233332).

The spelling of 2020231312 in words is "two billion, twenty million, two hundred thirty-one thousand, three hundred twelve".

Divisors: 1 2 4 8 11 16 17 22 23 31 34 44 46 62 68 88 92 124 136 176 184 187 248 253 272 341 368 374 391 496 506 527 682 713 748 782 947 1012 1054 1364 1426 1496 1564 1894 2024 2108 2728 2852 2992 3128 3788 4048 4216 4301 5456 5704 5797 6256 7576 7843 8432 8602 10417 11408 11594 12121 15152 15686 16099 17204 20834 21781 23188 24242 29357 31372 32198 34408 41668 43562 46376 48484 58714 62744 64396 68816 83336 87124 92752 96968 117428 125488 128792 133331 166672 174248 177089 193936 234856 239591 257584 266662 322927 348496 354178 370277 469712 479182 499069 533324 645854 675211 708356 740554 958364 998138 1066648 1291708 1350422 1416712 1481108 1916728 1996276 2133296 2583416 2700844 2833424 2962216 3833456 3992552 4073047 5166832 5401688 5489759 5924432 7427321 7985104 8146094 10803376 10979518 11478587 14854642 16292188 21959036 22957174 29709284 32584376 43918072 45914348 59418568 65168752 87836144 91828696 118837136 126264457 183657392 252528914 505057828 1010115656 2020231312