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231223331030 = 2531745881713
BaseRepresentation
bin1101011101010111111…
…1000000100011010110
3211002211100111020120012
43113111333000203112
512242021133043110
6254120022240222
722463633612426
oct3272577004326
9732740436505
10231223331030
118a0745a6a0a
1238990286072
1318a5bc87093
14b296bb0486
156034696905
hex35d5fc08d6

231223331030 has 16 divisors (see below), whose sum is σ = 429627867264. Its totient is φ = 89505805440.

The previous prime is 231223331023. The next prime is 231223331033. The reversal of 231223331030 is 30133322132.

It is a junction number, because it is equal to n+sod(n) for n = 231223330987 and 231223331005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231223331033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372940547 + ... + 372941166.

It is an arithmetic number, because the mean of its divisors is an integer number (26851741704).

Almost surely, 2231223331030 is an apocalyptic number.

231223331030 is a deficient number, since it is larger than the sum of its proper divisors (198404536234).

231223331030 is a wasteful number, since it uses less digits than its factorization.

231223331030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745881751.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 231223331030 its reverse (30133322132), we get a palindrome (261356653162).

The spelling of 231223331030 in words is "two hundred thirty-one billion, two hundred twenty-three million, three hundred thirty-one thousand, thirty".

Divisors: 1 2 5 10 31 62 155 310 745881713 1491763426 3729408565 7458817130 23122333103 46244666206 115611665515 231223331030