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231065324 = 227127181359
BaseRepresentation
bin11011100010111…
…00011011101100
3121002210100000222
431301130123230
5433123042244
634532310512
75504010560
oct1561343354
9532710028
10231065324
11109480886
1265472438
1338b43159
142298b6a0
1515443bee
hexdc5c6ec

231065324 has 48 divisors (see below), whose sum is σ = 469647360. Its totient is φ = 97433280.

The previous prime is 231065321. The next prime is 231065339. The reversal of 231065324 is 423560132.

It is a junction number, because it is equal to n+sod(n) for n = 231065293 and 231065302.

It is not an unprimeable number, because it can be changed into a prime (231065321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643457 + ... + 643815.

It is an arithmetic number, because the mean of its divisors is an integer number (9784320).

Almost surely, 2231065324 is an apocalyptic number.

It is an amenable number.

231065324 is an abundant number, since it is smaller than the sum of its proper divisors (238582036).

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

231065324 is a wasteful number, since it uses less digits than its factorization.

231065324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 231065324 is about 15200.8330034903. The cubic root of 231065324 is about 613.6370761061.

The spelling of 231065324 in words is "two hundred thirty-one million, sixty-five thousand, three hundred twenty-four".

Divisors: 1 2 4 7 14 28 127 181 254 359 362 508 718 724 889 1267 1436 1778 2513 2534 3556 5026 5068 10052 22987 45593 45974 64979 91186 91948 129958 160909 182372 259916 319151 321818 454853 638302 643636 909706 1276604 1819412 8252333 16504666 33009332 57766331 115532662 231065324