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220000012010020 = 2251117148739558529
BaseRepresentation
bin110010000001011010111110…
…100100010000001000100100
31001211221210111002200201212201
4302001122332210100020210
5212313440011033310040
62055522335453024244
764224322246410154
oct6201327644201044
91054853432621781
10220000012010020
116410a532433720
1220811586a85084
13959abb1bb9328
143c480b36ca764
151a67a89ee8a9a
hexc816be910224

220000012010020 has 96 divisors (see below), whose sum is σ = 534005976430080. Its totient is φ = 75243484938240.

The previous prime is 220000012009991. The next prime is 220000012010027. The reversal of 220000012010020 is 20010210000022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 220000012009979 and 220000012010006.

It is not an unprimeable number, because it can be changed into a prime (220000012010027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14217885 + ... + 25340644.

It is an arithmetic number, because the mean of its divisors is an integer number (5562562254480).

Almost surely, 2220000012010020 is an apocalyptic number.

220000012010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220000012010020 is an abundant number, since it is smaller than the sum of its proper divisors (314005964420060).

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

220000012010020 is a wasteful number, since it uses less digits than its factorization.

220000012010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39560053 (or 39560051 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 220000012010020 its reverse (20010210000022), we get a palindrome (240010222010042).

The spelling of 220000012010020 in words is "two hundred twenty trillion, twelve million, ten thousand, twenty".

Divisors: 1 2 4 5 10 11 17 20 22 34 44 55 68 85 110 170 187 220 340 374 748 935 1487 1870 2974 3740 5948 7435 14870 16357 25279 29740 32714 50558 65428 81785 101116 126395 163570 252790 278069 327140 505580 556138 1112276 1390345 2780690 5561380 39558529 79117058 158234116 197792645 395585290 435143819 672494993 791170580 870287638 1344989986 1740575276 2175719095 2689979972 3362474965 4351438190 6724949930 7397444923 8702876380 13449899860 14794889846 29589779692 36987224615 58823532623 73974449230 117647065246 147948898460 235294130492 294117663115 588235326230 647058858853 1000000054591 1176470652460 1294117717706 2000000109182 2588235435412 3235294294265 4000000218364 5000000272955 6470588588530 10000000545910 11000000600501 12941177177060 20000001091820 22000001201002 44000002402004 55000003002505 110000006005010 220000012010020