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1220230233200 = 2452112312057611
BaseRepresentation
bin10001110000011011011…
…000111011110001110000
311022122121221110102210202
4101300123120323301300
5124443012414430300
62332322132414332
7154105304563526
oct21603330736160
94278557412722
101220230233200
11430551178790
121785a47773a8
138b0b48a3ab4
14430b9222316
1521b1ac83ad5
hex11c1b63bc70

1220230233200 has 120 divisors (see below), whose sum is σ = 3337161158016. Its totient is φ = 424427872000.

The previous prime is 1220230233149. The next prime is 1220230233217. The reversal of 1220230233200 is 23320320221.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 5927606 + ... + 6130005.

Almost surely, 21220230233200 is an apocalyptic number.

1220230233200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220230233200 is an abundant number, since it is smaller than the sum of its proper divisors (2116930924816).

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

1220230233200 is a wasteful number, since it uses less digits than its factorization.

1220230233200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12057663 (or 12057652 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 1220230233200 its reverse (23320320221), we get a palindrome (1243550553421).

The spelling of 1220230233200 in words is "one trillion, two hundred twenty billion, two hundred thirty million, two hundred thirty-three thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 16 20 22 23 25 40 44 46 50 55 80 88 92 100 110 115 176 184 200 220 230 253 275 368 400 440 460 506 550 575 880 920 1012 1100 1150 1265 1840 2024 2200 2300 2530 4048 4400 4600 5060 6325 9200 10120 12650 20240 25300 50600 101200 12057611 24115222 48230444 60288055 96460888 120576110 132633721 192921776 241152220 265267442 277325053 301440275 482304440 530534884 554650106 602880550 663168605 964608880 1061069768 1109300212 1205761100 1326337210 1386625265 2122139536 2218600424 2411522200 2652674420 2773250530 3050575583 3315843025 4437200848 4823044400 5305348840 5546501060 6101151166 6631686050 6933126325 10610697680 11093002120 12202302332 13263372100 13866252650 15252877915 22186004240 24404604664 26526744200 27732505300 30505755830 48809209328 53053488400 55465010600 61011511660 76264389575 110930021200 122023023320 152528779150 244046046640 305057558300 610115116600 1220230233200