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20240231 = 112967947
BaseRepresentation
bin100110100110…
…1011101100111
31102002022101012
41031031131213
520140141411
62001452435
7334016264
oct115153547
942068335
1020240231
1110474870
12694111b
13426888b
14298c26b
151b9c18b
hex134d767

20240231 has 16 divisors (see below), whose sum is σ = 23207040. Its totient is φ = 17482080.

The previous prime is 20240219. The next prime is 20240257. The reversal of 20240231 is 13204202.

It is not a de Polignac number, because 20240231 - 26 = 20240167 is a prime.

It is a super-2 number, since 2×202402312 = 819333901866722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20240261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20900 + ... + 21846.

It is an arithmetic number, because the mean of its divisors is an integer number (1450440).

Almost surely, 220240231 is an apocalyptic number.

20240231 is a deficient number, since it is larger than the sum of its proper divisors (2966809).

20240231 is a wasteful number, since it uses less digits than its factorization.

20240231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20240231 is about 4498.9144246140. The cubic root of 20240231 is about 272.5242511313.

Adding to 20240231 its reverse (13204202), we get a palindrome (33444433).

The spelling of 20240231 in words is "twenty million, two hundred forty thousand, two hundred thirty-one".

Divisors: 1 11 29 67 319 737 947 1943 10417 21373 27463 63449 302093 697939 1840021 20240231