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130531200 = 2735213597
BaseRepresentation
bin1111100011110…
…11111110000000
3100002121200010220
413301323332000
5231403444300
620541423040
73143332302
oct761737600
9302550126
10130531200
1167755028
123786aa80
13210734c7
141349b972
15b6d5da0
hex7c7bf80

130531200 has 96 divisors (see below), whose sum is σ = 429968760. Its totient is φ = 34805760.

The previous prime is 130531189. The next prime is 130531201. The reversal of 130531200 is 2135031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 130531200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130531201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2802 + ... + 16398.

Almost surely, 2130531200 is an apocalyptic number.

130531200 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 130531200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214984380).

130531200 is an abundant number, since it is smaller than the sum of its proper divisors (299437560).

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

130531200 is a wasteful number, since it uses less digits than its factorization.

130531200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13624 (or 13607 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 130531200 is about 11425.0251640861. The cubic root of 130531200 is about 507.2687517718.

Adding to 130531200 its reverse (2135031), we get a palindrome (132666231).

The spelling of 130531200 in words is "one hundred thirty million, five hundred thirty-one thousand, two hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 128 150 160 192 200 240 300 320 384 400 480 600 640 800 960 1200 1600 1920 2400 3200 4800 9600 13597 27194 40791 54388 67985 81582 108776 135970 163164 203955 217552 271940 326328 339925 407910 435104 543880 652656 679850 815820 870208 1019775 1087760 1305312 1359700 1631640 1740416 2039550 2175520 2610624 2719400 3263280 4079100 4351040 5221248 5438800 6526560 8158200 8702080 10877600 13053120 16316400 21755200 26106240 32632800 43510400 65265600 130531200