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20234653 = 831311861
BaseRepresentation
bin100110100110…
…0000110011101
31102002000201121
41031030012131
520140002103
62001410541
7333664105
oct115140635
942060647
1020234653
111047065a
126939a51
13426618a
14298a205
151b9a6bd
hex134c19d

20234653 has 8 divisors (see below), whose sum is σ = 20645856. Its totient is φ = 19827600.

The previous prime is 20234633. The next prime is 20234701. The reversal of 20234653 is 35643202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20234653 - 213 = 20226461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20234623) 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, 9943 + ... + 11803.

It is an arithmetic number, because the mean of its divisors is an integer number (2580732).

Almost surely, 220234653 is an apocalyptic number.

It is an amenable number.

20234653 is a deficient number, since it is larger than the sum of its proper divisors (411203).

20234653 is a wasteful number, since it uses less digits than its factorization.

20234653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 20234653 is about 4498.2944545683. The cubic root of 20234653 is about 272.4992138686.

Adding to 20234653 its reverse (35643202), we get a palindrome (55877855).

The spelling of 20234653 in words is "twenty million, two hundred thirty-four thousand, six hundred fifty-three".

Divisors: 1 83 131 1861 10873 154463 243791 20234653