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20054310100 = 2252113178863
BaseRepresentation
bin10010101011010101…
…000111110011010100
31220202121201111200221
4102223111013303110
5312032400410400
613113545244124
71306651552246
oct225325076324
956677644627
1020054310100
118561154000
123a78193644
131b77a11aa6
14d835c2096
157c58e7c1a
hex4ab547cd4

20054310100 has 144 divisors (see below), whose sum is σ = 50687755776. Its totient is φ = 6862732800.

The previous prime is 20054310091. The next prime is 20054310119. The reversal of 20054310100 is 101345002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2258269 + ... + 2267131.

It is an arithmetic number, because the mean of its divisors is an integer number (351998304).

Almost surely, 220054310100 is an apocalyptic number.

20054310100 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 20054310100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25343877888).

20054310100 is an abundant number, since it is smaller than the sum of its proper divisors (30633445676).

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

20054310100 is a wasteful number, since it uses less digits than its factorization.

20054310100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8927 (or 8898 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 20054310100 its reverse (101345002), we get a palindrome (20155655102).

The spelling of 20054310100 in words is "twenty billion, fifty-four million, three hundred ten thousand, one hundred".

Divisors: 1 2 4 5 10 11 17 20 22 25 34 44 50 55 68 85 100 110 121 170 187 220 242 275 340 374 425 484 550 605 748 850 935 1100 1210 1331 1700 1870 2057 2420 2662 3025 3740 4114 4675 5324 6050 6655 8228 8863 9350 10285 12100 13310 17726 18700 20570 22627 26620 33275 35452 41140 44315 45254 51425 66550 88630 90508 97493 102850 113135 133100 150671 177260 194986 205700 221575 226270 301342 389972 443150 452540 487465 565675 602684 753355 886300 974930 1072423 1131350 1506710 1657381 1949860 2144846 2262700 2437325 3013420 3314762 3766775 4289692 4874650 5362115 6629524 7533550 8286905 9749300 10724230 11796653 15067100 16573810 18231191 21448460 23593306 26810575 33147620 36462382 41434525 47186612 53621150 58983265 72924764 82869050 91155955 107242300 117966530 165738100 182311910 200543101 235933060 294916325 364623820 401086202 455779775 589832650 802172404 911559550 1002715505 1179665300 1823119100 2005431010 4010862020 5013577525 10027155050 20054310100