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5430261 = 31810087
BaseRepresentation
bin10100101101101111110101
3101012212220210
4110231233311
52342232021
6312220033
764104444
oct24555765
911185823
105430261
113079921
12199a619
131181895
14a14d5b
15723e76
hex52dbf5

5430261 has 4 divisors (see below), whose sum is σ = 7240352. Its totient is φ = 3620172.

The previous prime is 5430247. The next prime is 5430287. The reversal of 5430261 is 1620345.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5430261 - 215 = 5397493 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5430211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905041 + ... + 905046.

It is an arithmetic number, because the mean of its divisors is an integer number (1810088).

Almost surely, 25430261 is an apocalyptic number.

It is an amenable number.

5430261 is a deficient number, since it is larger than the sum of its proper divisors (1810091).

5430261 is a wasteful number, since it uses less digits than its factorization.

5430261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810090.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 5430261 is about 2330.2920417836. The cubic root of 5430261 is about 175.7681714378.

The spelling of 5430261 in words is "five million, four hundred thirty thousand, two hundred sixty-one".

Divisors: 1 3 1810087 5430261