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231333232202120 = 23517220011525277
BaseRepresentation
bin110100100110010101110111…
…001000010101000110001000
31010100002020111200221001102102
4310212111313020111012020
5220310130424420431440
62140001004133452532
766504163101524156
oct6446256710250610
91110066450831372
10231333232202120
1167789966807944
1221b41b1b4a1148
139c108266c2589
14411a833d723d6
151bb2795526b15
hexd26577215188

231333232202120 has 48 divisors (see below), whose sum is σ = 552918443431140. Its totient is φ = 87090158001152.

The previous prime is 231333232202119. The next prime is 231333232202173. The reversal of 231333232202120 is 21202232333132.

It can be written as a sum of positive squares in 6 ways, for example, as 142649915380996 + 88683316821124 = 11943614^2 + 9417182^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10005751079 + ... + 10005774198.

Almost surely, 2231333232202120 is an apocalyptic number.

231333232202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231333232202120 is an abundant number, since it is smaller than the sum of its proper divisors (321585211229020).

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

231333232202120 is a wasteful number, since it uses less digits than its factorization.

231333232202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20011525322 (or 20011525301 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 231333232202120 its reverse (21202232333132), we get a palindrome (252535464535252).

The spelling of 231333232202120 in words is "two hundred thirty-one trillion, three hundred thirty-three billion, two hundred thirty-two million, two hundred two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 289 340 578 680 1156 1445 2312 2890 5780 11560 20011525277 40023050554 80046101108 100057626385 160092202216 200115252770 340195929709 400230505540 680391859418 800461011080 1360783718836 1700979648545 2721567437672 3401959297090 5783330805053 6803918594180 11566661610106 13607837188360 23133323220212 28916654025265 46266646440424 57833308050530 115666616101060 231333232202120