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231214200 = 23352755051
BaseRepresentation
bin11011100100000…
…00110001111000
3121010001220020220
431302000301320
5433142323300
634535420040
75505200610
oct1562006170
9533056226
10231214200
11109572718
1265524620
1338b95b49
14229c9a40
1515472da0
hexdc80c78

231214200 has 96 divisors (see below), whose sum is σ = 819173760. Its totient is φ = 52848000.

The previous prime is 231214199. The next prime is 231214231. The reversal of 231214200 is 2412132.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 231214200.

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, 23326 + ... + 31725.

It is an arithmetic number, because the mean of its divisors is an integer number (8533060).

Almost surely, 2231214200 is an apocalyptic number.

231214200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231214200 is an abundant number, since it is smaller than the sum of its proper divisors (587959560).

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

231214200 is a wasteful number, since it uses less digits than its factorization.

231214200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55077 (or 55068 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 231214200 is about 15205.7291834361. The cubic root of 231214200 is about 613.7688371431.

Adding to 231214200 its reverse (2412132), we get a palindrome (233626332).

The spelling of 231214200 in words is "two hundred thirty-one million, two hundred fourteen thousand, two hundred".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 25 28 30 35 40 42 50 56 60 70 75 84 100 105 120 140 150 168 175 200 210 280 300 350 420 525 600 700 840 1050 1400 2100 4200 55051 110102 165153 220204 275255 330306 385357 440408 550510 660612 770714 825765 1101020 1156071 1321224 1376275 1541428 1651530 1926785 2202040 2312142 2752550 3082856 3303060 3853570 4128825 4624284 5505100 5780355 6606120 7707140 8257650 9248568 9633925 11010200 11560710 15414280 16515300 19267850 23121420 28901775 33030600 38535700 46242840 57803550 77071400 115607100 231214200