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1031103212320 = 25544983917107
BaseRepresentation
bin11110000000100101000…
…10100110101100100000
310122120110100121022122201
433000102202212230200
5113343144410243240
62105403212142544
7134331461460226
oct17002242465440
93576410538581
101031103212320
11368319978745
12147a02467a54
137630409779c
1437c971c8b16
151bc4c15cd9a
hexf0128a6b20

1031103212320 has 96 divisors (see below), whose sum is σ = 2444459472000. Its totient is φ = 411008188416.

The previous prime is 1031103212267. The next prime is 1031103212351. The reversal of 1031103212320 is 232123011301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60265207 + ... + 60282313.

It is an arithmetic number, because the mean of its divisors is an integer number (25463119500).

Almost surely, 21031103212320 is an apocalyptic number.

1031103212320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031103212320 is an abundant number, since it is smaller than the sum of its proper divisors (1413356259680).

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

1031103212320 is a wasteful number, since it uses less digits than its factorization.

1031103212320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18410 (or 18402 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1031103212320 its reverse (232123011301), we get a palindrome (1263226223621).

The spelling of 1031103212320 in words is "one trillion, thirty-one billion, one hundred three million, two hundred twelve thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 449 839 898 1678 1796 2245 3356 3592 4195 4490 6712 7184 8390 8980 13424 14368 16780 17107 17960 26848 33560 34214 35920 67120 68428 71840 85535 134240 136856 171070 273712 342140 376711 547424 684280 753422 1368560 1506844 1883555 2737120 3013688 3767110 6027376 7534220 7681043 12054752 14352773 15068440 15362086 28705546 30136880 30724172 38405215 57411092 60273760 61448344 71763865 76810430 114822184 122896688 143527730 153620860 229644368 245793376 287055460 307241720 459288736 574110920 614483440 1148221840 1228966880 2296443680 6444395077 12888790154 25777580308 32221975385 51555160616 64443950770 103110321232 128887901540 206220642464 257775803080 515551606160 1031103212320