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231133230130 = 25112578175919
BaseRepresentation
bin1101011101000010011…
…1010011010000110010
3211002121001221122100211
43113100213103100302
512241330101331010
6254103043134334
722461461016535
oct3272047232062
9732531848324
10231133230130
118a028756860
12389660743aa
1318a463cb23a
14b288c38a1c
15602b7ea08a
hex35d09d3432

231133230130 has 32 divisors (see below), whose sum is σ = 455627669760. Its totient is φ = 83721400320.

The previous prime is 231133230089. The next prime is 231133230161. The reversal of 231133230130 is 31032331132.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4059690 + ... + 4116229.

It is an arithmetic number, because the mean of its divisors is an integer number (14238364680).

Almost surely, 2231133230130 is an apocalyptic number.

231133230130 is a deficient number, since it is larger than the sum of its proper divisors (224494439630).

231133230130 is a wasteful number, since it uses less digits than its factorization.

231133230130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8176194.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 231133230130 its reverse (31032331132), we get a palindrome (262165561262).

The spelling of 231133230130 in words is "two hundred thirty-one billion, one hundred thirty-three million, two hundred thirty thousand, one hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 257 514 1285 2570 2827 5654 14135 28270 8175919 16351838 40879595 81759190 89935109 179870218 449675545 899351090 2101211183 4202422366 10506055915 21012111830 23113323013 46226646026 115566615065 231133230130