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2020431 = 3796211
BaseRepresentation
bin111101101010001001111
310210122111210
413231101033
51004123211
6111145503
723113320
oct7552117
93718453
102020431
11115aa86
12815293
1355982a
143a8447
1529d9a6
hex1ed44f

2020431 has 8 divisors (see below), whose sum is σ = 3078784. Its totient is φ = 1154520.

The previous prime is 2020429. The next prime is 2020457. The reversal of 2020431 is 1340202.

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

It is not a de Polignac number, because 2020431 - 21 = 2020429 is a prime.

It is a super-2 number, since 2×20204312 = 8164282851522, 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 (2020411) 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 7 ways as a sum of consecutive naturals, for example, 48085 + ... + 48126.

It is an arithmetic number, because the mean of its divisors is an integer number (384848).

22020431 is an apocalyptic number.

2020431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2020431 is a deficient number, since it is larger than the sum of its proper divisors (1058353).

2020431 is an equidigital number, since it uses as much as digits as its factorization.

2020431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96221.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2020431 is about 1421.4186575390. The cubic root of 2020431 is about 126.4196764420.

Adding to 2020431 its reverse (1340202), we get a palindrome (3360633).

The spelling of 2020431 in words is "two million, twenty thousand, four hundred thirty-one".

Divisors: 1 3 7 21 96211 288633 673477 2020431