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231103033330020 = 22354438694621269
BaseRepresentation
bin110100100010111111011110…
…001101010100100101100100
31010022021020022202010201022120
4310202333132031110211210
5220242343003013030040
62135303133505025540
766451433414432235
oct6442773615244544
91108236282121276
10231103033330020
1167700278520105
1221b053963252b0
139bc4bcba5a517
14410d63727908c
151bab7c0c937d0
hexd22fde354964

231103033330020 has 48 divisors (see below), whose sum is σ = 648549189771840. Its totient is φ = 61488361607296.

The previous prime is 231103033329997. The next prime is 231103033330111. The reversal of 231103033330020 is 20033330301132.

It is a super-2 number, since 2×2311030333300202 (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4347284055 + ... + 4347337214.

It is an arithmetic number, because the mean of its divisors is an integer number (13511441453580).

Almost surely, 2231103033330020 is an apocalyptic number.

231103033330020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231103033330020 is an abundant number, since it is smaller than the sum of its proper divisors (417446156441820).

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

231103033330020 is a wasteful number, since it uses less digits than its factorization.

231103033330020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8694621724 (or 8694621722 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 231103033330020 its reverse (20033330301132), we get a palindrome (251136363631152).

The spelling of 231103033330020 in words is "two hundred thirty-one trillion, one hundred three billion, thirty-three million, three hundred thirty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 443 886 1329 1772 2215 2658 4430 5316 6645 8860 13290 26580 8694621269 17389242538 26083863807 34778485076 43473106345 52167727614 86946212690 104335455228 130419319035 173892425380 260838638070 521677276140 3851717222167 7703434444334 11555151666501 15406868888668 19258586110835 23110303333002 38517172221670 46220606666004 57775758332505 77034344443340 115551516665010 231103033330020