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231108696 = 233272135039
BaseRepresentation
bin11011100011001…
…11000001011000
3121002212112112100
431301213001120
5433130434241
634533243400
75504251200
oct1561470130
9532775470
10231108696
11109500425
1265493560
1338b59b10
142299d400
15154519b6
hexdc67058

231108696 has 144 divisors (see below), whose sum is σ = 784274400. Its totient is φ = 60939648.

The previous prime is 231108653. The next prime is 231108701. The reversal of 231108696 is 696801132.

It is a super-2 number, since 2×2311086962 = 106822458733640832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 231108696.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 43345 + ... + 48383.

It is an arithmetic number, because the mean of its divisors is an integer number (5446350).

Almost surely, 2231108696 is an apocalyptic number.

231108696 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231108696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392137200).

231108696 is an abundant number, since it is smaller than the sum of its proper divisors (553165704).

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

231108696 is a wasteful number, since it uses less digits than its factorization.

231108696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078 (or 5064 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 231108696 is about 15202.2595688930. The cubic root of 231108696 is about 613.6754678500.

The spelling of 231108696 in words is "two hundred thirty-one million, one hundred eight thousand, six hundred ninety-six".

Divisors: 1 2 3 4 6 7 8 9 12 13 14 18 21 24 26 28 36 39 42 49 52 56 63 72 78 84 91 98 104 117 126 147 156 168 182 196 234 252 273 294 312 364 392 441 468 504 546 588 637 728 819 882 936 1092 1176 1274 1638 1764 1911 2184 2548 3276 3528 3822 5039 5096 5733 6552 7644 10078 11466 15117 15288 20156 22932 30234 35273 40312 45351 45864 60468 65507 70546 90702 105819 120936 131014 141092 181404 196521 211638 246911 262028 282184 317457 362808 393042 423276 458549 493822 524056 589563 634914 740733 786084 846552 917098 987644 1179126 1269828 1375647 1481466 1572168 1834196 1975288 2222199 2358252 2539656 2751294 2962932 3209843 3668392 4126941 4444398 4716504 5502588 5925864 6419686 8253882 8888796 9629529 11005176 12839372 16507764 17777592 19259058 25678744 28888587 33015528 38518116 57777174 77036232 115554348 231108696