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203130302120 = 23513996737781
BaseRepresentation
bin1011110100101110000…
…0100110111010101000
3201102022111111111201222
42331023200212322220
511312002324131440
6233152231201212
720450521036154
oct2751340467250
9642274444658
10203130302120
117916883a549
123344bb16208
13162029c6855
149b8db26064
15543d1a62b5
hex2f4b826ea8

203130302120 has 64 divisors (see below), whose sum is σ = 460819497600. Its totient is φ = 80582019840.

The previous prime is 203130302107. The next prime is 203130302147. The reversal of 203130302120 is 21203031302.

203130302120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5357630 + ... + 5395410.

It is an arithmetic number, because the mean of its divisors is an integer number (7200304650).

Almost surely, 2203130302120 is an apocalyptic number.

203130302120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203130302120 is an abundant number, since it is smaller than the sum of its proper divisors (257689195480).

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

203130302120 is a wasteful number, since it uses less digits than its factorization.

203130302120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38898 (or 38894 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 203130302120 its reverse (21203031302), we get a palindrome (224333333422).

The spelling of 203130302120 in words is "two hundred three billion, one hundred thirty million, three hundred two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 139 278 556 695 967 1112 1390 1934 2780 3868 4835 5560 7736 9670 19340 37781 38680 75562 134413 151124 188905 268826 302248 377810 537652 672065 755620 1075304 1344130 1511240 2688260 5251559 5376520 10503118 21006236 26257795 36534227 42012472 52515590 73068454 105031180 146136908 182671135 210062360 292273816 365342270 730684540 1461369080 5078257553 10156515106 20313030212 25391287765 40626060424 50782575530 101565151060 203130302120