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210203131000 = 23531731215047
BaseRepresentation
bin1100001111000100010…
…1010011110001111000
3202002120102021102222011
43003301011103301320
511420444000143000
6240322130335304
721121013063422
oct3036105236170
9662512242864
10210203131000
1181168207575
12348a472a534
1316a8c11bab5
14a2611dd812
1557040a92ba
hex30f1153c78

210203131000 has 64 divisors (see below), whose sum is σ = 494718943680. Its totient is φ = 83595164800.

The previous prime is 210203130989. The next prime is 210203131069. The reversal of 210203131000 is 131302012.

It is a super-2 number, since 2×2102031310002 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 434524 + ... + 780523.

It is an arithmetic number, because the mean of its divisors is an integer number (7729983495).

Almost surely, 2210203131000 is an apocalyptic number.

210203131000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210203131000 is an abundant number, since it is smaller than the sum of its proper divisors (284515812680).

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

210203131000 is a wasteful number, since it uses less digits than its factorization.

210203131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215241 (or 1215227 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 210203131000 its reverse (131302012), we get a palindrome (210334433012).

The spelling of 210203131000 in words is "two hundred ten billion, two hundred three million, one hundred thirty-one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 173 200 250 346 500 692 865 1000 1384 1730 3460 4325 6920 8650 17300 21625 34600 43250 86500 173000 1215047 2430094 4860188 6075235 9720376 12150470 24300940 30376175 48601880 60752350 121504700 151880875 210203131 243009400 303761750 420406262 607523500 840812524 1051015655 1215047000 1681625048 2102031310 4204062620 5255078275 8408125240 10510156550 21020313100 26275391375 42040626200 52550782750 105101565500 210203131000