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203013412020420 = 223516324203857663
BaseRepresentation
bin101110001010001110111110…
…010011101110000011000100
3222121210220002201222120020120
4232022032332103232003010
5203102132431434123140
61555435023551101540
760522143414004141
oct5612167623560304
9877726081876216
10203013412020420
115976056059a521
121a929438b118b0
13893810c650431
14381bc89c993c8
151870ca0ec01d0
hexb8a3be4ee0c4

203013412020420 has 96 divisors (see below), whose sum is σ = 571949197811712. Its totient is φ = 53802495796608.

The previous prime is 203013412020361. The next prime is 203013412020487. The reversal of 203013412020420 is 24020214310302.

It is a happy number.

203013412020420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 236276509 + ... + 237134171.

It is an arithmetic number, because the mean of its divisors is an integer number (5957804143872).

Almost surely, 2203013412020420 is an apocalyptic number.

203013412020420 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 203013412020420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285974598905856).

203013412020420 is an abundant number, since it is smaller than the sum of its proper divisors (368935785791292).

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

203013412020420 is a wasteful number, since it uses less digits than its factorization.

203013412020420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882041 (or 882039 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 203013412020420 its reverse (24020214310302), we get a palindrome (227033626330722).

The spelling of 203013412020420 in words is "two hundred three trillion, thirteen billion, four hundred twelve million, twenty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 163 326 489 652 815 978 1630 1956 2445 3260 4890 9780 24203 48406 72609 96812 121015 145218 242030 290436 363045 484060 726090 857663 1452180 1715326 2572989 3430652 3945089 4288315 5145978 7890178 8576630 10291956 11835267 12864945 15780356 17153260 19725445 23670534 25729890 39450890 47341068 51459780 59176335 78901780 118352670 139799069 236705340 279598138 419397207 559196276 698995345 838794414 1397990690 1677588828 2096986035 2795981380 4193972070 8387944140 20758017589 41516035178 62274052767 83032070356 103790087945 124548105534 207580175890 249096211068 311370263835 415160351780 622740527670 1245481055340 3383556867007 6767113734014 10150670601021 13534227468028 16917784335035 20301341202042 33835568670070 40602682404084 50753353005105 67671137340140 101506706010210 203013412020420