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20302102110 = 23519218110357
BaseRepresentation
bin10010111010000110…
…010111111001011110
31221101212222122102210
4102322012113321132
5313034314231420
613154320301250
71316051010033
oct227206277136
957355878383
1020302102110
118679009894
123b27171826
131bb7160494
14da848538a
157dc5429e0
hex4ba197e5e

20302102110 has 96 divisors (see below), whose sum is σ = 51713599392. Its totient is φ = 5100122880.

The previous prime is 20302102109. The next prime is 20302102111. The reversal of 20302102110 is 1120120302.

It is an interprime number because it is at equal distance from previous prime (20302102109) and next prime (20302102111).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302102111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1955052 + ... + 1965408.

It is an arithmetic number, because the mean of its divisors is an integer number (538683327).

Almost surely, 220302102110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20302102110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25856799696).

20302102110 is an abundant number, since it is smaller than the sum of its proper divisors (31411497282).

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

20302102110 is a wasteful number, since it uses less digits than its factorization.

20302102110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10586 (or 10567 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20302102110 its reverse (1120120302), we get a palindrome (21422222412).

The spelling of 20302102110 in words is "twenty billion, three hundred two million, one hundred two thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 181 190 285 361 362 543 570 722 905 1083 1086 1805 1810 2166 2715 3439 3610 5415 5430 6878 10317 10357 10830 17195 20634 20714 31071 34390 51585 51785 62142 65341 103170 103570 130682 155355 196023 196783 310710 326705 392046 393566 590349 653410 980115 983915 1180698 1874617 1960230 1967830 2951745 3738877 3749234 5623851 5903490 7477754 9373085 11216631 11247702 18694385 18746170 22433262 28119255 35617723 37388770 56083155 56238510 71235446 106853169 112166310 178088615 213706338 356177230 534265845 676736737 1068531690 1353473474 2030210211 3383683685 4060420422 6767367370 10151051055 20302102110