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130331000 = 235347259
BaseRepresentation
bin1111100010010…
…11000101111000
3100002020111112002
413301023011320
5231331043000
620533240132
73141536522
oct761130570
9302214462
10130331000
1167628678
1237793048
1321003347
1413448a12
15b6968d5
hex7c4b178

130331000 has 96 divisors (see below), whose sum is σ = 316882800. Its totient is φ = 50158400.

The previous prime is 130330957. The next prime is 130331021. The reversal of 130331000 is 133031.

It is a super-2 number, since 2×1303310002 = 33972339122000000, which 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 23 ways as a sum of consecutive naturals, for example, 2208971 + ... + 2209029.

Almost surely, 2130331000 is an apocalyptic number.

130331000 is a gapful number since it is divisible by the number (10) 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 130331000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158441400).

130331000 is an abundant number, since it is smaller than the sum of its proper divisors (186551800).

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

130331000 is an equidigital number, since it uses as much as digits as its factorization.

130331000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 11.

The square root of 130331000 is about 11416.2603334017. The cubic root of 130331000 is about 507.0092808103.

Adding to 130331000 its reverse (133031), we get a palindrome (130464031).

The spelling of 130331000 in words is "one hundred thirty million, three hundred thirty-one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 47 50 59 94 100 118 125 188 200 235 236 250 295 376 470 472 500 590 940 1000 1175 1180 1475 1880 2209 2350 2360 2773 2950 4418 4700 5546 5875 5900 7375 8836 9400 11045 11092 11750 11800 13865 14750 17672 22090 22184 23500 27730 29500 44180 47000 55225 55460 59000 69325 88360 110450 110920 130331 138650 220900 260662 276125 277300 346625 441800 521324 552250 554600 651655 693250 1042648 1104500 1303310 1386500 2209000 2606620 2773000 3258275 5213240 6516550 13033100 16291375 26066200 32582750 65165500 130331000