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12323232332220 = 22351931348704933
BaseRepresentation
bin1011001101010011100111…
…1000101011100110111100
31121122002102020201220000110
42303110321320223212330
53103400434434112340
642113114220430020
72411216120343015
oct263247170534674
947562366656013
1012323232332220
113a21287427167
1214703a96a8310
136b50ca775324
1430863a40a00c
1516584eed3680
hexb3539e2b9bc

12323232332220 has 96 divisors (see below), whose sum is σ = 37492754503680. Its totient is φ = 3012810612480.

The previous prime is 12323232332219. The next prime is 12323232332233. The reversal of 12323232332220 is 2223323232321.

It is a super-2 number, since 2×123232323322202 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174317127 + ... + 174387806.

It is an arithmetic number, because the mean of its divisors is an integer number (390549526080).

Almost surely, 212323232332220 is an apocalyptic number.

12323232332220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12323232332220 is an abundant number, since it is smaller than the sum of its proper divisors (25169522171460).

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

12323232332220 is a wasteful number, since it uses less digits than its factorization.

12323232332220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348704995 (or 348704993 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 30.

Adding to 12323232332220 its reverse (2223323232321), we get a palindrome (14546555564541).

The spelling of 12323232332220 in words is "twelve trillion, three hundred twenty-three billion, two hundred thirty-two million, three hundred thirty-two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 31 38 57 60 62 76 93 95 114 124 155 186 190 228 285 310 372 380 465 570 589 620 930 1140 1178 1767 1860 2356 2945 3534 5890 7068 8835 11780 17670 35340 348704933 697409866 1046114799 1394819732 1743524665 2092229598 3487049330 4184459196 5230573995 6625393727 6974098660 10461147990 10809852923 13250787454 19876181181 20922295980 21619705846 26501574908 32429558769 33126968635 39752362362 43239411692 54049264615 64859117538 66253937270 79504724724 99380905905 108098529230 129718235076 132507874540 162147793845 198761811810 205387205537 216197058460 324295587690 397523623620 410774411074 616161616611 648591175380 821548822148 1026936027685 1232323233222 2053872055370 2464646466444 3080808083055 4107744110740 6161616166110 12323232332220