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131168000 = 28534099
BaseRepresentation
bin1111101000101…
…11011100000000
3100010211000200002
413310113130000
5232034334000
621003215132
73151623665
oct764273400
9303730602
10131168000
116804a507
1237b174a8
1321237302
14135c5a6c
15b7ae8d5
hex7d17700

131168000 has 72 divisors (see below), whose sum is σ = 326835600. Its totient is φ = 52454400.

The previous prime is 131167999. The next prime is 131168003. The reversal of 131168000 is 861131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131168003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29951 + ... + 34049.

Almost surely, 2131168000 is an apocalyptic number.

131168000 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 131168000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163417800).

131168000 is an abundant number, since it is smaller than the sum of its proper divisors (195667600).

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

131168000 is an frugal number, since it uses more digits than its factorization.

131168000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4130 (or 4106 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 131168000 is about 11452.8599048447. The cubic root of 131168000 is about 508.0923220721.

The spelling of 131168000 in words is "one hundred thirty-one million, one hundred sixty-eight thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 256 320 400 500 640 800 1000 1280 1600 2000 3200 4000 4099 6400 8000 8198 16000 16396 20495 32000 32792 40990 65584 81980 102475 131168 163960 204950 262336 327920 409900 512375 524672 655840 819800 1024750 1049344 1311680 1639600 2049500 2623360 3279200 4099000 5246720 6558400 8198000 13116800 16396000 26233600 32792000 65584000 131168000