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20003481200 = 2452192632037
BaseRepresentation
bin10010101000010011…
…001110011001110000
31220122002002010120002
4102220103032121300
5311431342344300
613104532005132
71305463533113
oct225023163160
956562063502
1020003481200
11853549754a
123a631607a8
131b6a326311
14d7a95057a
157c12075d5
hex4a84ce670

20003481200 has 60 divisors (see below), whose sum is σ = 50587770360. Its totient is φ = 7580263680.

The previous prime is 20003481163. The next prime is 20003481209. The reversal of 20003481200 is 218430002.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003481209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1308419 + ... + 1323618.

It is an arithmetic number, because the mean of its divisors is an integer number (843129506).

Almost surely, 220003481200 is an apocalyptic number.

20003481200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003481200 is an abundant number, since it is smaller than the sum of its proper divisors (30584289160).

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

20003481200 is a wasteful number, since it uses less digits than its factorization.

20003481200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632074 (or 2632063 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The spelling of 20003481200 in words is "twenty billion, three million, four hundred eighty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 19 20 25 38 40 50 76 80 95 100 152 190 200 304 380 400 475 760 950 1520 1900 3800 7600 2632037 5264074 10528148 13160185 21056296 26320370 42112592 50008703 52640740 65800925 100017406 105281480 131601850 200034812 210562960 250043515 263203700 400069624 500087030 526407400 800139248 1000174060 1052814800 1250217575 2000348120 2500435150 4000696240 5000870300 10001740600 20003481200