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20231338 = 2471371571
BaseRepresentation
bin100110100101…
…1010010101010
31102001212011211
41031023102222
520134400323
62001343334
7333651331
oct115132252
942055154
1020231338
1110469116
126937b4a
13426480a
142988d18
151b9970d
hex134b4aa

20231338 has 16 divisors (see below), whose sum is σ = 31238784. Its totient is φ = 9821920.

The previous prime is 20231303. The next prime is 20231339. The reversal of 20231338 is 83313202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20231339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12093 + ... + 13663.

It is an arithmetic number, because the mean of its divisors is an integer number (1952424).

Almost surely, 220231338 is an apocalyptic number.

20231338 is a deficient number, since it is larger than the sum of its proper divisors (11007446).

20231338 is a wasteful number, since it uses less digits than its factorization.

20231338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 20231338 is about 4497.9259664872. The cubic root of 20231338 is about 272.4843320678.

The spelling of 20231338 in words is "twenty million, two hundred thirty-one thousand, three hundred thirty-eight".

Divisors: 1 2 47 94 137 274 1571 3142 6439 12878 73837 147674 215227 430454 10115669 20231338