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5430681 = 321793371
BaseRepresentation
bin10100101101110110011001
3101012220111100
4110231312121
52342240211
6312222013
764105614
oct24556631
911186440
105430681
11307a173
12199a909
131181b29
14a1517b
15724156
hex52dd99

5430681 has 12 divisors (see below), whose sum is σ = 7890480. Its totient is φ = 3599160.

The previous prime is 5430679. The next prime is 5430683. The reversal of 5430681 is 1860345.

It is an interprime number because it is at equal distance from previous prime (5430679) and next prime (5430683).

It is not a de Polignac number, because 5430681 - 21 = 5430679 is a prime.

It is a super-2 number, since 2×54306812 = 58984592247522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5430683) 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 11 ways as a sum of consecutive naturals, for example, 75 + ... + 3296.

It is an arithmetic number, because the mean of its divisors is an integer number (657540).

Almost surely, 25430681 is an apocalyptic number.

It is an amenable number.

5430681 is a deficient number, since it is larger than the sum of its proper divisors (2459799).

5430681 is a wasteful number, since it uses less digits than its factorization.

5430681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556 (or 3553 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 5430681 is about 2330.3821575012. The cubic root of 5430681 is about 175.7727028792.

Adding to 5430681 its product of nonzero digits (2880), we get a square (5433561 = 23312).

The spelling of 5430681 in words is "five million, four hundred thirty thousand, six hundred eighty-one".

Divisors: 1 3 9 179 537 1611 3371 10113 30339 603409 1810227 5430681