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203220331134231 = 31734926634287463
BaseRepresentation
bin101110001101001111101011…
…101001011111110100010111
3222122112200012021210122112110
4232031033223221133310113
5203114030214232243411
62000114044205522103
760543120152313465
oct5615175351376427
9878480167718473
10203220331134231
1159830292a892a4
121a961565873333
138951797294998
143827cb8c7d835
151876361ad22a6
hexb8d3eba5fd17

203220331134231 has 32 divisors (see below), whose sum is σ = 287829463219200. Its totient is φ = 127097660726784.

The previous prime is 203220331134209. The next prime is 203220331134263. The reversal of 203220331134231 is 132431133022302.

It is not a de Polignac number, because 203220331134231 - 29 = 203220331133719 is a prime.

It is a super-3 number, since 3×2032203311342313 (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203220331134631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45255006 + ... + 49542468.

It is an arithmetic number, because the mean of its divisors is an integer number (8994670725600).

Almost surely, 2203220331134231 is an apocalyptic number.

203220331134231 is a deficient number, since it is larger than the sum of its proper divisors (84609132084969).

203220331134231 is a wasteful number, since it uses less digits than its factorization.

203220331134231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4290495.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 203220331134231 its reverse (132431133022302), we get a palindrome (335651464156533).

The spelling of 203220331134231 in words is "two hundred three trillion, two hundred twenty billion, three hundred thirty-one million, one hundred thirty-four thousand, two hundred thirty-one".

Divisors: 1 3 17 51 349 1047 2663 5933 7989 17799 45271 135813 929387 2788161 4287463 12862389 15799579 47398737 72886871 218660613 1496324587 4488973761 11417513969 25437517979 34252541907 76312553937 194097737473 582293212419 3984712375181 11954137125543 67740110378077 203220331134231