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1031212111308 = 2231274571480631
BaseRepresentation
bin11110000000110010000…
…10000001010111001100
310122120201221111221222120
433000121002001113030
5113343410300030213
62105422102212540
7134334253215051
oct17003102012714
93576657457876
101031212111308
11368375398105
12147a32a24150
1376320805962
1437ca7855028
151bc569be423
hexf0190815cc

1031212111308 has 48 divisors (see below), whose sum is σ = 2430415970304. Its totient is φ = 340284309120.

The previous prime is 1031212111291. The next prime is 1031212111357. The reversal of 1031212111308 is 8031112121301.

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, 43848 + ... + 1436783.

It is an arithmetic number, because the mean of its divisors is an integer number (50633666048).

Almost surely, 21031212111308 is an apocalyptic number.

It is an amenable number.

1031212111308 is an abundant number, since it is smaller than the sum of its proper divisors (1399203858996).

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

1031212111308 is a wasteful number, since it uses less digits than its factorization.

1031212111308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481222 (or 1481220 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

Adding to 1031212111308 its reverse (8031112121301), we get a palindrome (9062324232609).

The spelling of 1031212111308 in words is "one trillion, thirty-one billion, two hundred twelve million, one hundred eleven thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 127 254 381 457 508 762 914 1371 1524 1828 2742 5484 58039 116078 174117 232156 348234 696468 1480631 2961262 4441893 5922524 8883786 17767572 188040137 376080274 564120411 676648367 752160548 1128240822 1353296734 2029945101 2256481644 2706593468 4059890202 8119780404 85934342609 171868685218 257803027827 343737370436 515606055654 1031212111308