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12310154404220 = 22517219112093921
BaseRepresentation
bin1011001100100010111001…
…1000010110000101111100
31121120211122211022022102202
42303020232120112011330
53103142144011413340
642103112403211032
72410244046652031
oct263105630260574
947524584268382
1012310154404220
113a16786266302
121469959976a78
136b3ac51ba3aa
14307b59597388
15165336cdbc15
hexb322e61617c

12310154404220 has 72 divisors (see below), whose sum is σ = 28906780605360. Its totient is φ = 4390494658560.

The previous prime is 12310154404199. The next prime is 12310154404279. The reversal of 12310154404220 is 2240445101321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55937141 + ... + 56156780.

Almost surely, 212310154404220 is an apocalyptic number.

12310154404220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12310154404220 is an abundant number, since it is smaller than the sum of its proper divisors (16596626201140).

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

12310154404220 is a wasteful number, since it uses less digits than its factorization.

12310154404220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112093983 (or 112093964 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 12310154404220 its reverse (2240445101321), we get a palindrome (14550599505541).

The spelling of 12310154404220 in words is "twelve trillion, three hundred ten billion, one hundred fifty-four million, four hundred four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 19 20 34 38 68 76 85 95 170 190 289 323 340 380 578 646 1156 1292 1445 1615 2890 3230 5491 5780 6460 10982 21964 27455 54910 109820 112093921 224187842 448375684 560469605 1120939210 1905596657 2129784499 2241878420 3811193314 4259568998 7622386628 8519137996 9527983285 10648922495 19055966570 21297844990 32395143169 36206336483 38111933140 42595689980 64790286338 72412672966 129580572676 144825345932 161975715845 181031682415 323951431690 362063364830 615507720211 647902863380 724126729660 1231015440422 2462030880844 3077538601055 6155077202110 12310154404220