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20030321300 = 22521181122453
BaseRepresentation
bin10010101001111001…
…100111001010010100
31220200221120202020212
4102221321213022110
5312010230240200
613111331144552
71306240631123
oct225171471224
956627522225
1020030321300
118549659950
123a70145158
131b72a62c32
14d80339aba
157c375a035
hex4a9e67294

20030321300 has 72 divisors (see below), whose sum is σ = 47477815392. Its totient is φ = 7274448000.

The previous prime is 20030321243. The next prime is 20030321321. The reversal of 20030321300 is 312303002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 880874 + ... + 903326.

Almost surely, 220030321300 is an apocalyptic number.

20030321300 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 20030321300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23738907696).

20030321300 is an abundant number, since it is smaller than the sum of its proper divisors (27447494092).

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

20030321300 is a wasteful number, since it uses less digits than its factorization.

20030321300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23289 (or 23282 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20030321300 its reverse (312303002), we get a palindrome (20342624302).

The spelling of 20030321300 in words is "twenty billion, thirty million, three hundred twenty-one thousand, three hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 811 1100 1622 3244 4055 8110 8921 16220 17842 20275 22453 35684 40550 44605 44906 81100 89210 89812 112265 178420 223025 224530 246983 446050 449060 493966 561325 892100 987932 1122650 1234915 2245300 2469830 4939660 6174575 12349150 18209383 24698300 36418766 72837532 91046915 182093830 200303213 364187660 400606426 455234575 801212852 910469150 1001516065 1820938300 2003032130 4006064260 5007580325 10015160650 20030321300