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1320311310230 = 25111710313195197
BaseRepresentation
bin10011001101101000101…
…011111100011110010110
311200012221202122220211102
4103031220223330132112
5133112444143411410
62450313113310102
7164250354652313
oct23155053743626
94605852586742
101320311310230
11469a393501a0
12193a75705332
139767412cbc3
1447c90d49d0a
15245271862a5
hex13368afc796

1320311310230 has 128 divisors (see below), whose sum is σ = 2774404638720. Its totient is φ = 447058851840.

The previous prime is 1320311310209. The next prime is 1320311310233. The reversal of 1320311310230 is 320131130231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320311310233) 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 63 ways as a sum of consecutive naturals, for example, 254049992 + ... + 254055188.

It is an arithmetic number, because the mean of its divisors is an integer number (21675036240).

Almost surely, 21320311310230 is an apocalyptic number.

1320311310230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320311310230 is an abundant number, since it is smaller than the sum of its proper divisors (1454093328490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1320311310230 is a wasteful number, since it uses less digits than its factorization.

1320311310230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6654.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1320311310230 its reverse (320131130231), we get a palindrome (1640442440461).

The spelling of 1320311310230 in words is "one trillion, three hundred twenty billion, three hundred eleven million, three hundred ten thousand, two hundred thirty".

Divisors: 1 2 5 10 11 17 22 34 55 85 103 110 170 187 206 374 515 935 1030 1133 1319 1751 1870 2266 2638 3502 5197 5665 6595 8755 10394 11330 13190 14509 17510 19261 22423 25985 29018 38522 44846 51970 57167 72545 88349 96305 112115 114334 135857 145090 176698 192610 224230 246653 271714 285835 441745 493306 535291 571670 679285 883490 971839 1070582 1233265 1358570 1494427 1943678 2309569 2466530 2676455 2988854 4619138 4859195 5352910 5888201 6854843 7472135 9099947 9718390 11547845 11776402 13709686 14944270 18199894 23095690 25405259 29441005 34274215 45499735 50810518 58882010 68548430 75403273 90999470 100099417 116532331 127026295 150806546 200198834 233064662 254052590 377016365 500497085 582661655 706048829 754032730 1000994170 1165323310 1281855641 1412097658 2563711282 3530244145 6409278205 7060488290 7766537119 12002830093 12818556410 15533074238 24005660186 38832685595 60014150465 77665371190 120028300930 132031131023 264062262046 660155655115 1320311310230