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214431767112920 = 23579710181775477
BaseRepresentation
bin110000110000011001001001…
…010011101010110011011000
31001010020110212112112220220112
4300300121021103222303120
5211101222224340103140
62040020332140143452
763111120041620640
oct6060311123526330
91033213775486815
10214431767112920
1162363002346465
1220072390b37b88
139285aa10601a6
143ad47a5255520
1519bcce06bdc65
hexc306494eacd8

214431767112920 has 128 divisors (see below), whose sum is σ = 557135903237760. Its totient is φ = 72754289786880.

The previous prime is 214431767112887. The next prime is 214431767112967. The reversal of 214431767112920 is 29211767134412.

It is a congruent number.

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, 276128222 + ... + 276903698.

It is an arithmetic number, because the mean of its divisors is an integer number (4352624244045).

Almost surely, 2214431767112920 is an apocalyptic number.

214431767112920 is a gapful number since it is divisible by the number (20) 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 214431767112920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278567951618880).

214431767112920 is an abundant number, since it is smaller than the sum of its proper divisors (342704136124840).

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

214431767112920 is a wasteful number, since it uses less digits than its factorization.

214431767112920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785773 (or 785769 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 214431767112920 in words is "two hundred fourteen trillion, four hundred thirty-one billion, seven hundred sixty-seven million, one hundred twelve thousand, nine hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 97 140 194 280 388 485 679 776 970 1358 1940 2716 3395 3880 5432 6790 10181 13580 20362 27160 40724 50905 71267 81448 101810 142534 203620 285068 356335 407240 570136 712670 775477 987557 1425340 1550954 1975114 2850680 3101908 3877385 3950228 4937785 5428339 6203816 6912899 7754770 7900456 9875570 10856678 13825798 15509540 19751140 21713356 27141695 27651596 31019080 34564495 39502280 43426712 54283390 55303192 69128990 75221269 108566780 138257980 150442538 217133560 276515960 300885076 376106345 526548883 601770152 752212690 1053097766 1504425380 2106195532 2632744415 3008850760 4212391064 5265488830 7895131337 10530977660 15790262674 21061955320 31580525348 39475656685 55265919359 63161050696 78951313370 110531838718 157902626740 221063677436 276329596795 315805253480 442127354872 552659193590 765827739689 1105318387180 1531655479378 2210636774360 3063310958756 3829138698445 5360794177823 6126621917512 7658277396890 10721588355646 15316554793780 21443176711292 26803970889115 30633109587560 42886353422584 53607941778230 107215883556460 214431767112920