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8061807940920 = 23325139161107273
BaseRepresentation
bin111010101010000100100…
…1100101101010100111000
31001112200221020221010022100
41311110021030231110320
52024041040313102140
625051313214423400
71461306054563556
oct165241114552470
931480836833270
108061807940920
112628aa2459048
12aa2523201b60
134662c0a91976
141dc29d2b4bd6
15dea8d28e530
hex7550932d538

8061807940920 has 96 divisors (see below), whose sum is σ = 26389371481200. Its totient is φ = 2134349139456.

The previous prime is 8061807940909. The next prime is 8061807940931. The reversal of 8061807940920 is 290497081608.

8061807940920 is a `hidden beast` number, since 80 + 61 + 80 + 7 + 9 + 409 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (8061807940909) and next prime (8061807940931).

It is a super-3 number, since 3×80618079409203 (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80503597 + ... + 80603676.

Almost surely, 28061807940920 is an apocalyptic number.

It is an amenable number.

8061807940920 is an abundant number, since it is smaller than the sum of its proper divisors (18327563540280).

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

8061807940920 is a wasteful number, since it uses less digits than its factorization.

8061807940920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161107429 (or 161107422 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 8061807940920 in words is "eight trillion, sixty-one billion, eight hundred seven million, nine hundred forty thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 139 180 278 360 417 556 695 834 1112 1251 1390 1668 2085 2502 2780 3336 4170 5004 5560 6255 8340 10008 12510 16680 25020 50040 161107273 322214546 483321819 644429092 805536365 966643638 1288858184 1449965457 1611072730 1933287276 2416609095 2899930914 3222145460 3866574552 4833218190 5799861828 6444290920 7249827285 9666436380 11599723656 14499654570 19332872760 22393910947 28999309140 44787821894 57998618280 67181732841 89575643788 111969554735 134363465682 179151287576 201545198523 223939109470 268726931364 335908664205 403090397046 447878218940 537453862728 671817328410 806180794092 895756437880 1007725992615 1343634656820 1612361588184 2015451985230 2687269313640 4030903970460 8061807940920