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20030080480 = 255227551489
BaseRepresentation
bin10010101001111000…
…101100010111100000
31220200221010111220121
4102221320230113200
5312010200033410
613111322050024
71306235606044
oct225170542740
956627114817
1020030080480
118549504a23
123a70049914
131b729aa437
14d802b6024
157c370d9da
hex4a9e2c5e0

20030080480 has 48 divisors (see below), whose sum is σ = 47529614160. Its totient is φ = 7976722432.

The previous prime is 20030080471. The next prime is 20030080501. The reversal of 20030080480 is 8408003002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239425 + ... + 312064.

It is an arithmetic number, because the mean of its divisors is an integer number (990200295).

Almost surely, 220030080480 is an apocalyptic number.

20030080480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20030080480 is an abundant number, since it is smaller than the sum of its proper divisors (27499533680).

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

20030080480 is a wasteful number, since it uses less digits than its factorization.

20030080480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551731 (or 551723 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 20030080480 its reverse (8408003002), we get a palindrome (28438083482).

The spelling of 20030080480 in words is "twenty billion, thirty million, eighty thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 227 454 908 1135 1816 2270 3632 4540 7264 9080 18160 36320 551489 1102978 2205956 2757445 4411912 5514890 8823824 11029780 17647648 22059560 44119120 88238240 125188003 250376006 500752012 625940015 1001504024 1251880030 2003008048 2503760060 4006016096 5007520120 10015040240 20030080480