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912985261230 = 23573671324261
BaseRepresentation
bin11010100100100100010…
…10011000010010101110
310020021120111211200220110
431102102022120102232
5104424243211324410
61535230350400450
7122650424451000
oct15222212302256
93207514750813
10912985261230
11322216418849
12128b38b00126
136812ba9a333
143228dbd6370
1518b3751b720
hexd4922984ae

912985261230 has 128 divisors (see below), whose sum is σ = 2593434700800. Its totient is φ = 205567528320.

The previous prime is 912985261157. The next prime is 912985261249. The reversal of 912985261230 is 32162589219.

It is a happy number.

It is a super-2 number, since 2×9129852612302 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 912985261230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27300 + ... + 1351560.

It is an arithmetic number, because the mean of its divisors is an integer number (20261208600).

Almost surely, 2912985261230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 912985261230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1296717350400).

912985261230 is an abundant number, since it is smaller than the sum of its proper divisors (1680449439570).

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

912985261230 is a wasteful number, since it uses less digits than its factorization.

912985261230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324359 (or 1324345 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 912985261230 in words is "nine hundred twelve billion, nine hundred eighty-five million, two hundred sixty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 49 67 70 98 105 134 147 201 210 245 294 335 343 402 469 490 670 686 735 938 1005 1029 1407 1470 1715 2010 2058 2345 2814 3283 3430 4690 5145 6566 7035 9849 10290 14070 16415 19698 22981 32830 45962 49245 68943 98490 114905 137886 229810 344715 689430 1324261 2648522 3972783 6621305 7945566 9269827 13242610 18539654 19863915 27809481 39727830 46349135 55618962 64888789 88725487 92698270 129777578 139047405 177450974 194666367 266176461 278094810 324443945 389332734 443627435 454221523 532352922 621078409 648887890 887254870 908443046 973331835 1242156818 1330882305 1362664569 1863235227 1946663670 2271107615 2661764610 2725329138 3105392045 3726470454 4347548863 4542215230 6210784090 6813322845 8695097726 9316176135 13042646589 13626645690 18632352270 21737744315 26085293178 30432842041 43475488630 60865684082 65213232945 91298526123 130426465890 152164210205 182597052246 304328420410 456492630615 912985261230