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20231354 = 21113127557
BaseRepresentation
bin100110100101…
…1010010111010
31102001212012102
41031023102322
520134400404
62001343402
7333651353
oct115132272
942055172
1020231354
1110469130
126937b62
134264820
142988d2a
151b9971e
hex134b4ba

20231354 has 32 divisors (see below), whose sum is σ = 35997696. Its totient is φ = 8406720.

The previous prime is 20231339. The next prime is 20231359. The reversal of 20231354 is 45313202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20231359) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 36044 + ... + 36600.

It is an arithmetic number, because the mean of its divisors is an integer number (1124928).

Almost surely, 220231354 is an apocalyptic number.

20231354 is a deficient number, since it is larger than the sum of its proper divisors (15766342).

20231354 is a wasteful number, since it uses less digits than its factorization.

20231354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 20231354 is about 4497.9277450844. The cubic root of 20231354 is about 272.4844038994.

Adding to 20231354 its reverse (45313202), we get a palindrome (65544556).

The spelling of 20231354 in words is "twenty million, two hundred thirty-one thousand, three hundred fifty-four".

Divisors: 1 2 11 13 22 26 127 143 254 286 557 1114 1397 1651 2794 3302 6127 7241 12254 14482 18161 36322 70739 79651 141478 159302 778129 919607 1556258 1839214 10115677 20231354