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231330041330 = 25172411952317
BaseRepresentation
bin1101011101110001011…
…0000100110111110010
3211010002210021200120112
43113130112010313302
512242230442310310
6254134353341322
722466400623243
oct3273426046762
9733083250515
10231330041330
118a119860a43
12389bbb67842
1318a78109c7b
14b2a702acca
15603dc24705
hex35dc584df2

231330041330 has 48 divisors (see below), whose sum is σ = 453117389256. Its totient is φ = 84964792320.

The previous prime is 231330041303. The next prime is 231330041353. The reversal of 231330041330 is 33140033132.

It can be written as a sum of positive squares in 12 ways, for example, as 17574539761 + 213755501569 = 132569^2 + 462337^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231330041296 and 231330041305.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 857669 + ... + 1094648.

Almost surely, 2231330041330 is an apocalyptic number.

231330041330 is a deficient number, since it is larger than the sum of its proper divisors (221787347926).

231330041330 is a wasteful number, since it uses less digits than its factorization.

231330041330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952399 (or 1952382 counting only the distinct ones).

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

Adding to 231330041330 its reverse (33140033132), we get a palindrome (264470074462).

The spelling of 231330041330 in words is "two hundred thirty-one billion, three hundred thirty million, forty-one thousand, three hundred thirty".

Divisors: 1 2 5 10 17 34 41 82 85 170 205 289 410 578 697 1394 1445 2890 3485 6970 11849 23698 59245 118490 1952317 3904634 9761585 19523170 33189389 66378778 80044997 160089994 165946945 331893890 400224985 564219613 800449970 1128439226 1360764949 2721529898 2821098065 5642196130 6803824745 13607649490 23133004133 46266008266 115665020665 231330041330