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230307188 = 22232503339
BaseRepresentation
bin11011011101000…
…11010101110100
3121001100211001212
431232203111310
5432424312223
634504140552
75464402346
oct1556432564
9531324055
10230307188
11109003221
1265167758
1338939057
1422831296
1515344278
hexdba3574

230307188 has 12 divisors (see below), whose sum is σ = 420561120. Its totient is φ = 110146872.

The previous prime is 230307137. The next prime is 230307193. The reversal of 230307188 is 881703032.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251578 + ... + 1251761.

It is an arithmetic number, because the mean of its divisors is an integer number (35046760).

Almost surely, 2230307188 is an apocalyptic number.

It is an amenable number.

230307188 is a deficient number, since it is larger than the sum of its proper divisors (190253932).

230307188 is a wasteful number, since it uses less digits than its factorization.

230307188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503366 (or 2503364 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 230307188 is about 15175.8751971674. The cubic root of 230307188 is about 612.9652169064.

The spelling of 230307188 in words is "two hundred thirty million, three hundred seven thousand, one hundred eighty-eight".

Divisors: 1 2 4 23 46 92 2503339 5006678 10013356 57576797 115153594 230307188