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203130023000 = 23531271599449
BaseRepresentation
bin1011110100101101111…
…1100010110001011000
3201102022110222022212012
42331023133202301120
511312002241214000
6233152221205052
720450515464332
oct2751337426130
9642273868765
10203130023000
1179168669873
123344ba00788
13162029297a8
149b8da92452
15543d14d735
hex2f4b7e2c58

203130023000 has 64 divisors (see below), whose sum is σ = 479067264000. Its totient is φ = 80612179200.

The previous prime is 203130022987. The next prime is 203130023009. The reversal of 203130023000 is 320031302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203130023009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672725 + ... + 926724.

It is an arithmetic number, because the mean of its divisors is an integer number (7485426000).

Almost surely, 2203130023000 is an apocalyptic number.

203130023000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203130023000 is an abundant number, since it is smaller than the sum of its proper divisors (275937241000).

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

203130023000 is a wasteful number, since it uses less digits than its factorization.

203130023000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599597 (or 1599583 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 203130023000 its reverse (320031302), we get a palindrome (203450054302).

The spelling of 203130023000 in words is "two hundred three billion, one hundred thirty million, twenty-three thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 127 200 250 254 500 508 635 1000 1016 1270 2540 3175 5080 6350 12700 15875 25400 31750 63500 127000 1599449 3198898 6397796 7997245 12795592 15994490 31988980 39986225 63977960 79972450 159944900 199931125 203130023 319889800 399862250 406260046 799724500 812520092 1015650115 1599449000 1625040184 2031300230 4062600460 5078250575 8125200920 10156501150 20313002300 25391252875 40626004600 50782505750 101565011500 203130023000