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8018430093990 = 2335173156352731
BaseRepresentation
bin111010010101110111110…
…1011010110101010100110
31001101112222011212011221000
41310223233223112222212
52022333221101001430
625015341012534130
71455212113142541
oct164535753265246
931345864764830
108018430093990
112611662825678
12a96038021346
13462199c71a14
141da146265858
15dd89ee78e60
hex74aefad6aa6

8018430093990 has 128 divisors (see below), whose sum is σ = 23370605015040. Its totient is φ = 1947550348800.

The previous prime is 8018430093977. The next prime is 8018430094009. The reversal of 8018430093990 is 993900348108.

8018430093990 is a `hidden beast` number, since 80 + 18 + 430 + 0 + 9 + 39 + 90 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28034076 + ... + 28318655.

It is an arithmetic number, because the mean of its divisors is an integer number (182582851680).

Almost surely, 28018430093990 is an apocalyptic number.

8018430093990 is an abundant number, since it is smaller than the sum of its proper divisors (15352174921050).

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

8018430093990 is a wasteful number, since it uses less digits than its factorization.

8018430093990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56352795 (or 56352789 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 8018430093990 in words is "eight trillion, eighteen billion, four hundred thirty million, ninety-three thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 17 18 27 30 31 34 45 51 54 62 85 90 93 102 135 153 155 170 186 255 270 279 306 310 459 465 510 527 558 765 837 918 930 1054 1395 1530 1581 1674 2295 2635 2790 3162 4185 4590 4743 5270 7905 8370 9486 14229 15810 23715 28458 47430 71145 142290 56352731 112705462 169058193 281763655 338116386 507174579 563527310 845290965 957996427 1014349158 1521523737 1690581930 1746934661 1915992854 2535872895 2873989281 3043047474 3493869322 4789982135 5071745790 5240803983 5747978562 7607618685 8621967843 8734673305 9579964270 10481607966 14369946405 15215237370 15722411949 17243935686 17469346610 25865903529 26204019915 28739892810 29697889237 31444823898 43109839215 47167235847 51731807058 52408039830 59395778474 78612059745 86219678430 89093667711 94334471694 129329517645 148489446185 157224119490 178187335422 235836179235 258659035290 267281003133 296978892370 445468338555 471672358470 534562006266 801843009399 890936677110 1336405015665 1603686018798 2672810031330 4009215046995 8018430093990