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18116478483792 = 24313193741298461
BaseRepresentation
bin1000001111010000100100…
…10000111011110101010000
32101010220210112102201002220
410013220102100323311100
54333310021442440132
6102310332331141040
73546605140214043
oct407502220736520
971126715381086
1018116478483792
1158551788990a7
122047117ba4780
13a154b84a5b30
14468bb1154c5a
152163b7b01a2c
hex107a1243bd50

18116478483792 has 160 divisors (see below), whose sum is σ = 54487538824320. Its totient is φ = 5138189199360.

The previous prime is 18116478483781. The next prime is 18116478483839. The reversal of 18116478483792 is 29738487461181.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20210559 + ... + 21087902.

It is an arithmetic number, because the mean of its divisors is an integer number (340547117652).

Almost surely, 218116478483792 is an apocalyptic number.

18116478483792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18116478483792 is an abundant number, since it is smaller than the sum of its proper divisors (36371060340528).

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

18116478483792 is a wasteful number, since it uses less digits than its factorization.

18116478483792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41298541 (or 41298535 counting only the distinct ones).

The product of its digits is 130056192, while the sum is 69.

The spelling of 18116478483792 in words is "eighteen trillion, one hundred sixteen billion, four hundred seventy-eight million, four hundred eighty-three thousand, seven hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 13 16 19 24 26 37 38 39 48 52 57 74 76 78 104 111 114 148 152 156 208 222 228 247 296 304 312 444 456 481 494 592 624 703 741 888 912 962 988 1406 1443 1482 1776 1924 1976 2109 2812 2886 2964 3848 3952 4218 5624 5772 5928 7696 8436 9139 11248 11544 11856 16872 18278 23088 27417 33744 36556 54834 73112 109668 146224 219336 438672 41298461 82596922 123895383 165193844 247790766 330387688 495581532 536879993 660775376 784670759 991163064 1073759986 1528043057 1569341518 1610639979 1982326128 2147519972 2354012277 3056086114 3138683036 3221279958 4295039944 4584129171 4708024554 6112172228 6277366072 6442559916 8590079888 9168258342 9416049108 10200719867 12224344456 12554732144 12885119832 18336516684 18832098216 19864559741 20401439734 24448688912 25770239664 29032818083 30602159601 36673033368 37664196432 39729119482 40802879468 58065636166 59593679223 61204319202 73346066736 79458238964 81605758936 87098454249 116131272332 119187358446 122408638404 158916477928 163211517872 174196908498 232262544664 238374716892 244817276808 317832955856 348393816996 377426635079 464525089328 476749433784 489634553616 696787633992 754853270158 953498867568 1132279905237 1393575267984 1509706540316 2264559810474 3019413080632 4529119620948 6038826161264 9058239241896 18116478483792