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30123123103320 = 233513145913234883
BaseRepresentation
bin1101101100101100101100…
…00011010101011001011000
310221122202001020112110022220
412312112112003111121120
512422014124003301240
6144022212142344040
76226216033452132
oct666262603253130
9127582036473286
1030123123103320
1196641657579a5
123466090b8b020
1313a67a1680440
14761d773c2052
1537388903d5d0
hex1b65960d5658

30123123103320 has 128 divisors (see below), whose sum is σ = 97387570425600. Its totient is φ = 7409839855104.

The previous prime is 30123123103217. The next prime is 30123123103343. The reversal of 30123123103320 is 2330132132103.

It is a super-2 number, since 2×301231231033202 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 4341402 + ... + 8893481.

It is an arithmetic number, because the mean of its divisors is an integer number (760840393950).

Almost surely, 230123123103320 is an apocalyptic number.

30123123103320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30123123103320 is an abundant number, since it is smaller than the sum of its proper divisors (67264447322280).

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

30123123103320 is a wasteful number, since it uses less digits than its factorization.

30123123103320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13236369 (or 13236365 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 30123123103320 its reverse (2330132132103), we get a palindrome (32453255235423).

The spelling of 30123123103320 in words is "thirty trillion, one hundred twenty-three billion, one hundred twenty-three million, one hundred three thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 195 260 312 390 520 780 1459 1560 2918 4377 5836 7295 8754 11672 14590 17508 18967 21885 29180 35016 37934 43770 56901 58360 75868 87540 94835 113802 151736 175080 189670 227604 284505 379340 455208 569010 758680 1138020 2276040 13234883 26469766 39704649 52939532 66174415 79409298 105879064 132348830 158818596 172053479 198523245 264697660 317637192 344106958 397046490 516160437 529395320 688213916 794092980 860267395 1032320874 1376427832 1588185960 1720534790 2064641748 2580802185 3441069580 4129283496 5161604370 6882139160 10323208740 19309694297 20646417480 38619388594 57929082891 77238777188 96548471485 115858165782 154477554376 193096942970 231716331564 251026025861 289645414455 386193885940 463432663128 502052051722 579290828910 753078077583 772387771880 1004104103444 1158581657820 1255130129305 1506156155166 2008208206888 2317163315640 2510260258610 3012312310332 3765390387915 5020520517220 6024624620664 7530780775830 10041041034440 15061561551660 30123123103320