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130031111200 = 25521013160453
BaseRepresentation
bin111100100011001110…
…1010100110000100000
3110102122002110212011111
41321012131110300200
54112300431024300
6135422505553104
712252202131364
oct1710635246040
9412562425144
10130031111200
1150167199471
122124b1a5794
13c353478523
1464176872a4
1535b095b9ba
hex1e46754c20

130031111200 has 72 divisors (see below), whose sum is σ = 317753795268. Its totient is φ = 51960775680.

The previous prime is 130031111173. The next prime is 130031111261. The reversal of 130031111200 is 2111130031.

It can be written as a sum of positive squares in 6 ways, for example, as 289952784 + 129741158416 = 17028^2 + 360196^2 .

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, 730174 + ... + 890626.

Almost surely, 2130031111200 is an apocalyptic number.

130031111200 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 130031111200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158876897634).

130031111200 is an abundant number, since it is smaller than the sum of its proper divisors (187722684068).

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

130031111200 is a wasteful number, since it uses less digits than its factorization.

130031111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161486 (or 161473 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 130031111200 its reverse (2111130031), we get a palindrome (132142241231).

The spelling of 130031111200 in words is "one hundred thirty billion, thirty-one million, one hundred eleven thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 1013 2026 4052 5065 8104 10130 16208 20260 25325 32416 40520 50650 81040 101300 160453 162080 202600 320906 405200 641812 802265 810400 1283624 1604530 2567248 3209060 4011325 5134496 6418120 8022650 12836240 16045300 25672480 32090600 64181200 128362400 162538889 325077778 650155556 812694445 1300311112 1625388890 2600622224 3250777780 4063472225 5201244448 6501555560 8126944450 13003111120 16253888900 26006222240 32507777800 65015555600 130031111200