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20103013200 = 2435216752511
BaseRepresentation
bin10010101110001110…
…111010001101010000
31220220000100212210110
4102232032322031100
5312132332410300
613122445201320
71311112535634
oct225616721520
956800325713
1020103013200
1185866993a6
123a90560240
131b84b34aaa
14d89c5cdc4
157c9d18550
hex4ae3ba350

20103013200 has 60 divisors (see below), whose sum is σ = 64396656128. Its totient is φ = 5360803200.

The previous prime is 20103013199. The next prime is 20103013211. The reversal of 20103013200 is 231030102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×201030132002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 11 ways as a sum of consecutive naturals, for example, 8375056 + ... + 8377455.

Almost surely, 220103013200 is an apocalyptic number.

20103013200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20103013200 is an abundant number, since it is smaller than the sum of its proper divisors (44293642928).

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

20103013200 is a wasteful number, since it uses less digits than its factorization.

20103013200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16752532 (or 16752521 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20103013200 its reverse (231030102), we get a palindrome (20334043302).

The spelling of 20103013200 in words is "twenty billion, one hundred three million, thirteen thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 150 200 240 300 400 600 1200 16752511 33505022 50257533 67010044 83762555 100515066 134020088 167525110 201030132 251287665 268040176 335050220 402060264 418812775 502575330 670100440 804120528 837625550 1005150660 1256438325 1340200880 1675251100 2010301320 2512876650 3350502200 4020602640 5025753300 6701004400 10051506600 20103013200