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231301303211120 = 24529934110673251
BaseRepresentation
bin110100100101111000001000…
…000000111001010001110000
31010022222012002111220020212012
4310211320020000321101300
5220304120032110223440
62135534203552422052
766501652626551642
oct6445701000712160
91108865074806765
10231301303211120
116777737171737a
1221b378aa547928
139c0a8087b5cac
144119085674892
151bb1a273b4e65
hexd25e08039470

231301303211120 has 80 divisors (see below), whose sum is σ = 556379122626720. Its totient is φ = 89320586880000.

The previous prime is 231301303211087. The next prime is 231301303211129. The reversal of 231301303211120 is 21112303103132.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231301303211129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16334495 + ... + 27007745.

It is an arithmetic number, because the mean of its divisors is an integer number (6954739032834).

Almost surely, 2231301303211120 is an apocalyptic number.

231301303211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231301303211120 is an abundant number, since it is smaller than the sum of its proper divisors (325077819415600).

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

231301303211120 is a wasteful number, since it uses less digits than its factorization.

231301303211120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10682634 (or 10682628 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 231301303211120 its reverse (21112303103132), we get a palindrome (252413606314252).

The spelling of 231301303211120 in words is "two hundred thirty-one trillion, three hundred one billion, three hundred three million, two hundred eleven thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 29 40 58 80 116 145 232 290 464 580 1160 2320 9341 18682 37364 46705 74728 93410 149456 186820 270889 373640 541778 747280 1083556 1354445 2167112 2708890 4334224 5417780 10673251 10835560 21346502 21671120 42693004 53366255 85386008 106732510 170772016 213465020 309524279 426930040 619048558 853860080 1238097116 1547621395 2476194232 3095242790 4952388464 6190485580 12380971160 24761942320 99698837591 199397675182 398795350364 498494187955 797590700728 996988375910 1595181401456 1993976751820 2891266290139 3987953503640 5782532580278 7975907007280 11565065160556 14456331450695 23130130321112 28912662901390 46260260642224 57825325802780 115650651605560 231301303211120