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231057344 = 267273679
BaseRepresentation
bin11011100010110…
…10011111000000
3121002202221002102
431301122133000
5433122313334
634532205532
75503645400
oct1561323700
9532687072
10231057344
11109475891
12654698a8
1338b3c62b
1422988800
151544167e
hexdc5a7c0

231057344 has 42 divisors (see below), whose sum is σ = 533369520. Its totient is φ = 99023232.

The previous prime is 231057329. The next prime is 231057367. The reversal of 231057344 is 443750132.

It is a happy number.

231057344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33704 + ... + 39975.

Almost surely, 2231057344 is an apocalyptic number.

It is an amenable number.

231057344 is an abundant number, since it is smaller than the sum of its proper divisors (302312176).

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

231057344 is an equidigital number, since it uses as much as digits as its factorization.

231057344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73705 (or 73688 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 231057344 is about 15200.5705156089. The cubic root of 231057344 is about 613.6300118985.

The spelling of 231057344 in words is "two hundred thirty-one million, fifty-seven thousand, three hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 196 224 392 448 784 1568 3136 73679 147358 294716 515753 589432 1031506 1178864 2063012 2357728 3610271 4126024 4715456 7220542 8252048 14441084 16504096 28882168 33008192 57764336 115528672 231057344