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5669281 = 47120623
BaseRepresentation
bin10101101000000110100001
3101200000210101
4111220012201
52422404111
6321302401
766121342
oct25500641
911600711
105669281
113222462
121a94a01
131236607
14a780c9
1576ebc1
hex5681a1

5669281 has 4 divisors (see below), whose sum is σ = 5789952. Its totient is φ = 5548612.

The previous prime is 5669273. The next prime is 5669291. The reversal of 5669281 is 1829665.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1829665 = 5365933.

It is a cyclic number.

It is not a de Polignac number, because 5669281 - 23 = 5669273 is a prime.

It is a super-2 number, since 2×56692812 = 64281494113922, which contains 22 as substring.

It is a Duffinian number.

5669281 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5669281.

It is not an unprimeable number, because it can be changed into a prime (5669221) 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, 60265 + ... + 60358.

It is an arithmetic number, because the mean of its divisors is an integer number (1447488).

Almost surely, 25669281 is an apocalyptic number.

It is an amenable number.

5669281 is a deficient number, since it is larger than the sum of its proper divisors (120671).

5669281 is a wasteful number, since it uses less digits than its factorization.

5669281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120670.

The product of its digits is 25920, while the sum is 37.

The square root of 5669281 is about 2381.0251993627. The cubic root of 5669281 is about 178.3101209100.

The spelling of 5669281 in words is "five million, six hundred sixty-nine thousand, two hundred eighty-one".

Divisors: 1 47 120623 5669281