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203152411231 = 71119313670171
BaseRepresentation
bin1011110100110011010…
…0111100101001011111
3201102101001002202201221
42331030310330221133
511312024004124411
6233154341114211
720451210001210
oct2751464745137
9642331082657
10203152411231
117917a270440
12334573b8967
1316207467c73
149b92a3d407
1554400c2071
hex2f4cd3ca5f

203152411231 has 16 divisors (see below), whose sum is σ = 254593283328. Its totient is φ = 157480358400.

The previous prime is 203152411207. The next prime is 203152411277. The reversal of 203152411231 is 132114251302.

It is a cyclic number.

It is not a de Polignac number, because 203152411231 - 27 = 203152411103 is a prime.

It is a super-2 number, since 2×2031524112312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203152411196 and 203152411205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203152412231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6820225 + ... + 6849946.

It is an arithmetic number, because the mean of its divisors is an integer number (15912080208).

Almost surely, 2203152411231 is an apocalyptic number.

203152411231 is a deficient number, since it is larger than the sum of its proper divisors (51440872097).

203152411231 is a wasteful number, since it uses less digits than its factorization.

203152411231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13670382.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 203152411231 its reverse (132114251302), we get a palindrome (335266662533).

The spelling of 203152411231 in words is "two hundred three billion, one hundred fifty-two million, four hundred eleven thousand, two hundred thirty-one".

Divisors: 1 7 11 77 193 1351 2123 14861 13670171 95691197 150371881 1052603167 2638343003 18468401021 29021773033 203152411231