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201231220330300 = 22528374873238243
BaseRepresentation
bin101101110000010011001011…
…011001111100111100111100
3222101111111221201220021101111
4231300103023121330330330
5202333433014401032200
61551552202454051404
760246322142410636
oct5560231331747474
9871444851807344
10201231220330300
1159133754875706
121a69bb60649b64
13883903aa009c4
143799900699a56
15183e744aa80ba
hexb704cb67cf3c

201231220330300 has 72 divisors (see below), whose sum is σ = 441992016700416. Its totient is φ = 79512053127360.

The previous prime is 201231220330267. The next prime is 201231220330321. The reversal of 201231220330300 is 3033022132102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60522979 + ... + 63761221.

It is an arithmetic number, because the mean of its divisors is an integer number (6138778009728).

Almost surely, 2201231220330300 is an apocalyptic number.

201231220330300 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 201231220330300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220996008350208).

201231220330300 is an abundant number, since it is smaller than the sum of its proper divisors (240760796370116).

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

201231220330300 is a wasteful number, since it uses less digits than its factorization.

201231220330300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245827 (or 3245820 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 201231220330300 its reverse (3033022132102), we get a palindrome (204264242462402).

The spelling of 201231220330300 in words is "two hundred one trillion, two hundred thirty-one billion, two hundred twenty million, three hundred thirty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 83 100 166 332 415 830 1660 2075 4150 7487 8300 14974 29948 37435 74870 149740 187175 374350 621421 748700 1242842 2485684 3107105 3238243 6214210 6476486 12428420 12952972 15535525 16191215 31071050 32382430 62142100 64764860 80956075 161912150 268774169 323824300 537548338 1075096676 1343870845 2687741690 5375483380 6719354225 13438708450 24244725341 26877416900 48489450682 96978901364 121223626705 242447253410 484894506820 606118133525 1212236267050 2012312203303 2424472534100 4024624406606 8049248813212 10061561016515 20123122033030 40246244066060 50307805082575 100615610165150 201231220330300