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23300211220 = 225111317479231
BaseRepresentation
bin10101101100110011…
…010000001000010100
32020010211110100221221
4111230303100020110
5340204323224340
614412020220124
71453254345646
oct255463201024
966124410857
1023300211220
1199773a8610
12462323a644
132274332140
1411b0718896
1591586144a
hex56ccd0214

23300211220 has 96 divisors (see below), whose sum is σ = 60866297856. Its totient is φ = 7360972800.

The previous prime is 23300211197. The next prime is 23300211247. The reversal of 23300211220 is 2211200332.

It is a super-2 number, since 2×233002112202 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23300211194 and 23300211203.

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, 190996 + ... + 288235.

It is an arithmetic number, because the mean of its divisors is an integer number (634023936).

Almost surely, 223300211220 is an apocalyptic number.

23300211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23300211220 is an abundant number, since it is smaller than the sum of its proper divisors (37566086636).

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

23300211220 is a wasteful number, since it uses less digits than its factorization.

23300211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479281 (or 479279 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 23300211220 its reverse (2211200332), we get a palindrome (25511411552).

The spelling of 23300211220 in words is "twenty-three billion, three hundred million, two hundred eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 13 17 20 22 26 34 44 52 55 65 68 85 110 130 143 170 187 220 221 260 286 340 374 442 572 715 748 884 935 1105 1430 1870 2210 2431 2860 3740 4420 4862 9724 12155 24310 48620 479231 958462 1916924 2396155 4792310 5271541 6230003 8146927 9584620 10543082 12460006 16293854 21086164 24920012 26357705 31150015 32587708 40734635 52715410 62300030 68530033 81469270 89616197 105430820 105910051 124600060 137060066 162938540 179232394 211820102 274120132 342650165 358464788 423640204 448080985 529550255 685300330 896161970 1059100510 1165010561 1370600660 1792323940 2118201020 2330021122 4660042244 5825052805 11650105610 23300211220