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20314124220 = 223513208312503
BaseRepresentation
bin10010111010110100…
…001110111110111100
31221102201121102200010
4102322310032332330
5313100403433340
613155430103220
71316255130645
oct227264167674
957381542603
1020314124220
118684880215
123b2b1aab10
131bb97ac560
14da9cd46cc
157dd619b80
hex4bad0efbc

20314124220 has 96 divisors (see below), whose sum is σ = 61289206272. Its totient is φ = 4997599488.

The previous prime is 20314124219. The next prime is 20314124231. The reversal of 20314124220 is 2242141302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1618489 + ... + 1630991.

It is an arithmetic number, because the mean of its divisors is an integer number (638429232).

Almost surely, 220314124220 is an apocalyptic number.

20314124220 is a gapful number since it is divisible by the number (20) 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 20314124220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30644603136).

20314124220 is an abundant number, since it is smaller than the sum of its proper divisors (40975082052).

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

20314124220 is a wasteful number, since it uses less digits than its factorization.

20314124220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14611 (or 14609 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20314124220 its reverse (2242141302), we get a palindrome (22556265522).

The spelling of 20314124220 in words is "twenty billion, three hundred fourteen million, one hundred twenty-four thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 2083 4166 6249 8332 10415 12498 12503 20830 24996 25006 27079 31245 37509 41660 50012 54158 62490 62515 75018 81237 108316 124980 125030 135395 150036 162474 162539 187545 250060 270790 324948 325078 375090 406185 487617 541580 650156 750180 812370 812695 975234 1624740 1625390 1950468 2438085 3250780 4876170 9752340 26043749 52087498 78131247 104174996 130218745 156262494 260437490 312524988 338568737 390656235 520874980 677137474 781312470 1015706211 1354274948 1562624940 1692843685 2031412422 3385687370 4062824844 5078531055 6771374740 10157062110 20314124220