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31020110300 = 2252537617691
BaseRepresentation
bin11100111000111100…
…010101000111011100
32222001211210212122002
4130320330111013130
51002012122012200
622130032341432
72145464405234
oct347074250734
988054725562
1031020110300
1112179052aa3
1260186a4878
132c0482396a
141703b0ccc4
15c1847dbd5
hex738f151dc

31020110300 has 72 divisors (see below), whose sum is σ = 68682760272. Its totient is φ = 12156352000.

The previous prime is 31020110267. The next prime is 31020110321. The reversal of 31020110300 is 301102013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4029455 + ... + 4037145.

It is an arithmetic number, because the mean of its divisors is an integer number (953927226).

Almost surely, 231020110300 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31020110300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34341380136).

31020110300 is an abundant number, since it is smaller than the sum of its proper divisors (37662649972).

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

31020110300 is a wasteful number, since it uses less digits than its factorization.

31020110300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8519 (or 8512 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 31020110300 its reverse (301102013), we get a palindrome (31321212313).

The spelling of 31020110300 in words is "thirty-one billion, twenty million, one hundred ten thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 53 100 106 212 265 530 761 1060 1325 1522 2650 3044 3805 5300 7610 7691 15220 15382 19025 30764 38050 38455 40333 76100 76910 80666 153820 161332 192275 201665 384550 403330 407623 769100 806660 815246 1008325 1630492 2016650 2038115 4033300 4076230 5852851 8152460 10190575 11705702 20381150 23411404 29264255 40762300 58528510 117057020 146321275 292642550 310201103 585285100 620402206 1240804412 1551005515 3102011030 6204022060 7755027575 15510055150 31020110300