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202131120230 = 251310728151713
BaseRepresentation
bin1011110000111111110…
…1000010000001100110
3201022201212100210212022
42330033331002001212
511302431031321410
6232505135223142
720413666113344
oct2741775020146
9638655323768
10202131120230
11787a5825396
1233211377ab2
13160a39b4b70
149ad714c994
1553d05d7455
hex2f0ff42066

202131120230 has 64 divisors (see below), whose sum is σ = 396900399168. Its totient is φ = 73670983680.

The previous prime is 202131120229. The next prime is 202131120253. The reversal of 202131120230 is 32021131202.

202131120230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 202131120199 and 202131120208.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 3882854 + ... + 3934566.

It is an arithmetic number, because the mean of its divisors is an integer number (6201568737).

Almost surely, 2202131120230 is an apocalyptic number.

202131120230 is a deficient number, since it is larger than the sum of its proper divisors (194769278938).

202131120230 is a wasteful number, since it uses less digits than its factorization.

202131120230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52121.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 202131120230 its reverse (32021131202), we get a palindrome (234152251432).

The spelling of 202131120230 in words is "two hundred two billion, one hundred thirty-one million, one hundred twenty thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 107 130 214 281 535 562 1070 1391 1405 2782 2810 3653 6955 7306 13910 18265 30067 36530 51713 60134 103426 150335 258565 300670 390871 517130 672269 781742 1344538 1954355 3361345 3908710 5533291 6722690 11066582 14531353 27666455 29062706 55332910 71932783 72656765 143865566 145313530 188907589 359663915 377815178 719327830 944537945 1554854771 1889075890 3109709542 7774273855 15548547710 20213112023 40426224046 101065560115 202131120230