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20848181112 = 23381136109
BaseRepresentation
bin10011011010101001…
…011111111101111000
31222210221112100000000
4103122221133331320
5320144113243422
613324424513000
71335431421063
oct233251377570
958727470000
1020848181112
118929289050
12405a01b760
131c7332a055
14101abd38da
1582045dcac
hex4daa5ff78

20848181112 has 144 divisors (see below), whose sum is σ = 63964531800. Its totient is φ = 6317455680.

The previous prime is 20848181083. The next prime is 20848181119. The reversal of 20848181112 is 21118184802.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20848181119) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 559314 + ... + 595422.

Almost surely, 220848181112 is an apocalyptic number.

20848181112 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 20848181112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31982265900).

20848181112 is an abundant number, since it is smaller than the sum of its proper divisors (43116350688).

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

20848181112 is an equidigital number, since it uses as much as digits as its factorization.

20848181112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36150 (or 36125 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 36.

The spelling of 20848181112 in words is "twenty billion, eight hundred forty-eight million, one hundred eighty-one thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 27 33 36 44 54 66 72 81 88 99 108 132 162 198 216 243 264 297 324 396 486 594 648 729 792 891 972 1188 1458 1782 1944 2187 2376 2673 2916 3564 4374 5346 5832 6561 7128 8019 8748 10692 13122 16038 17496 21384 24057 26244 32076 36109 48114 52488 64152 72171 72218 96228 108327 144342 144436 192456 216654 288684 288872 324981 397199 433308 577368 649962 794398 866616 974943 1191597 1299924 1588796 1949886 2383194 2599848 2924829 3177592 3574791 3899772 4766388 5849658 7149582 7799544 8774487 9532776 10724373 11699316 14299164 17548974 21448746 23398632 26323461 28598328 32173119 35097948 42897492 52646922 64346238 70195896 78970383 85794984 96519357 105293844 128692476 157940766 193038714 210587688 236911149 257384952 289558071 315881532 386077428 473822298 579116142 631763064 772154856 868674213 947644596 1158232284 1737348426 1895289192 2316464568 2606022639 3474696852 5212045278 6949393704 10424090556 20848181112