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10427431 = 71489633
BaseRepresentation
bin100111110001…
…110000100111
3201121202202011
4213301300213
510132134211
61011255051
7154426450
oct47616047
921552664
1010427431
115982313
1235aa487
1322112a1
141556127
15dae921
hex9f1c27

10427431 has 4 divisors (see below), whose sum is σ = 11917072. Its totient is φ = 8937792.

The previous prime is 10427429. The next prime is 10427437. The reversal of 10427431 is 13472401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10427431 - 21 = 10427429 is a prime.

It is a super-2 number, since 2×104274312 = 217462634519522, 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 (10427437) 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 3 ways as a sum of consecutive naturals, for example, 744810 + ... + 744823.

It is an arithmetic number, because the mean of its divisors is an integer number (2979268).

Almost surely, 210427431 is an apocalyptic number.

10427431 is a deficient number, since it is larger than the sum of its proper divisors (1489641).

10427431 is an equidigital number, since it uses as much as digits as its factorization.

10427431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489640.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 10427431 is about 3229.1532945960. The cubic root of 10427431 is about 218.4703183765.

Adding to 10427431 its reverse (13472401), we get a palindrome (23899832).

The spelling of 10427431 in words is "ten million, four hundred twenty-seven thousand, four hundred thirty-one".

Divisors: 1 7 1489633 10427431