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20234013 = 38537907
BaseRepresentation
bin100110100101…
…1111100011101
31102001222211220
41031023330131
520134442023
62001403553
7333662202
oct115137435
942058756
1020234013
1110470128
1269395b9
134265ab7
142989ca9
151b9a3e3
hex134bf1d

20234013 has 8 divisors (see below), whose sum is σ = 27013728. Its totient is φ = 13471824.

The previous prime is 20234009. The next prime is 20234023. The reversal of 20234013 is 31043202.

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

It is not a de Polignac number, because 20234013 - 22 = 20234009 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20233983 and 20234001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20234023) 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, 1395 + ... + 6512.

It is an arithmetic number, because the mean of its divisors is an integer number (3376716).

Almost surely, 220234013 is an apocalyptic number.

It is an amenable number.

20234013 is a deficient number, since it is larger than the sum of its proper divisors (6779715).

20234013 is an equidigital number, since it uses as much as digits as its factorization.

20234013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8763.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20234013 is about 4498.2233159326. The cubic root of 20234013 is about 272.4963408874.

Adding to 20234013 its reverse (31043202), we get a palindrome (51277215).

The spelling of 20234013 in words is "twenty million, two hundred thirty-four thousand, thirteen".

Divisors: 1 3 853 2559 7907 23721 6744671 20234013