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231130210230 = 23254759539633
BaseRepresentation
bin1101011101000001101…
…1110001111110110110
3211002120212021012211200
43113100123301332312
512241323313211410
6254102454313330
722461423241263
oct3272033617666
9732525235750
10231130210230
118a026a83977
1238965058846
1318a458b180a
14b28869026a
15602b4003c0
hex35d06f1fb6

231130210230 has 48 divisors (see below), whose sum is σ = 601065934560. Its totient is φ = 61621657344.

The previous prime is 231130210217. The next prime is 231130210249. The reversal of 231130210230 is 32012031132.

231130210230 is a `hidden beast` number, since 231 + 1 + 302 + 102 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158494 + ... + 698126.

It is an arithmetic number, because the mean of its divisors is an integer number (12522206970).

Almost surely, 2231130210230 is an apocalyptic number.

231130210230 is an abundant number, since it is smaller than the sum of its proper divisors (369935724330).

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

231130210230 is a wasteful number, since it uses less digits than its factorization.

231130210230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544405 (or 544402 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 231130210230 its reverse (32012031132), we get a palindrome (263142241362).

The spelling of 231130210230 in words is "two hundred thirty-one billion, one hundred thirty million, two hundred ten thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 4759 9518 14277 23795 28554 42831 47590 71385 85662 142770 214155 428310 539633 1079266 1618899 2698165 3237798 4856697 5396330 8094495 9713394 16188990 24283485 48566970 2568113447 5136226894 7704340341 12840567235 15408680682 23113021023 25681134470 38521701705 46226042046 77043403410 115565105115 231130210230