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552105397 = 4311280987
BaseRepresentation
bin100000111010000…
…111010110110101
31102110212212020001
4200322013112311
52112314333042
6130441311301
716452550504
oct4072072665
91373785201
10552105397
11263715a58
12134a95531
138a4c98ac
145347a83b
153370bbb7
hex20e875b5

552105397 has 4 divisors (see below), whose sum is σ = 553386816. Its totient is φ = 550823980.

The previous prime is 552105371. The next prime is 552105403. The reversal of 552105397 is 793501255.

It is a happy number.

552105397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-552105397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552106397) 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, 640063 + ... + 640924.

It is an arithmetic number, because the mean of its divisors is an integer number (138346704).

Almost surely, 2552105397 is an apocalyptic number.

It is an amenable number.

552105397 is a deficient number, since it is larger than the sum of its proper divisors (1281419).

552105397 is a wasteful number, since it uses less digits than its factorization.

552105397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281418.

The product of its (nonzero) digits is 47250, while the sum is 37.

The square root of 552105397 is about 23496.9231389984. The cubic root of 552105397 is about 820.3653918866.

The spelling of 552105397 in words is "five hundred fifty-two million, one hundred five thousand, three hundred ninety-seven".

Divisors: 1 431 1280987 552105397