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231303144300 = 223521940579499
BaseRepresentation
bin1101011101101010111…
…1011110001101101100
3211010000220200011210020
43113122233132031230
512242202101104200
6254131553042140
722465623200244
oct3273257361554
9733026604706
10231303144300
118a10565a898
12389b2b56350
1318a72680477
14b2a3628b24
15603b6aeea0
hex35dabde36c

231303144300 has 72 divisors (see below), whose sum is σ = 704460120000. Its totient is φ = 58434477120.

The previous prime is 231303144277. The next prime is 231303144301. The reversal of 231303144300 is 3441303132.

It is a super-2 number, since 2×2313031443002 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231303144301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20284050 + ... + 20295449.

Almost surely, 2231303144300 is an apocalyptic number.

231303144300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231303144300 is an abundant number, since it is smaller than the sum of its proper divisors (473156975700).

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

231303144300 is a wasteful number, since it uses less digits than its factorization.

231303144300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40579535 (or 40579528 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 231303144300 its reverse (3441303132), we get a palindrome (234744447432).

The spelling of 231303144300 in words is "two hundred thirty-one billion, three hundred three million, one hundred forty-four thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 25 30 38 50 57 60 75 76 95 100 114 150 190 228 285 300 380 475 570 950 1140 1425 1900 2850 5700 40579499 81158998 121738497 162317996 202897495 243476994 405794990 486953988 608692485 771010481 811589980 1014487475 1217384970 1542020962 2028974950 2313031443 2434769940 3043462425 3084041924 3855052405 4057949900 4626062886 6086924850 7710104810 9252125772 11565157215 12173849700 15420209620 19275262025 23130314430 38550524050 46260628860 57825786075 77101048100 115651572150 231303144300