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20234031 = 319354983
BaseRepresentation
bin100110100101…
…1111100101111
31102001222212120
41031023330233
520134442111
62001404023
7333662226
oct115137457
942058776
1020234031
1110470144
126939613
134265acc
142989cbd
151b9a406
hex134bf2f

20234031 has 8 divisors (see below), whose sum is σ = 28398720. Its totient is φ = 12779352.

The previous prime is 20234023. The next prime is 20234047. The reversal of 20234031 is 13043202.

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

It is not a de Polignac number, because 20234031 - 23 = 20234023 is a prime.

It is a super-2 number, since 2×202340312 = 818832021017922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20234031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20234231) 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, 177435 + ... + 177548.

It is an arithmetic number, because the mean of its divisors is an integer number (3549840).

Almost surely, 220234031 is an apocalyptic number.

20234031 is a deficient number, since it is larger than the sum of its proper divisors (8164689).

20234031 is a wasteful number, since it uses less digits than its factorization.

20234031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355005.

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

The square root of 20234031 is about 4498.2253167221. The cubic root of 20234031 is about 272.4964216908.

Adding to 20234031 its reverse (13043202), we get a palindrome (33277233).

The spelling of 20234031 in words is "twenty million, two hundred thirty-four thousand, thirty-one".

Divisors: 1 3 19 57 354983 1064949 6744677 20234031