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387296061 = 3129098687
BaseRepresentation
bin10111000101011…
…010101100111101
3222222202200022120
4113011122230331
51243121433221
6102233033153
712411651015
oct2705325475
9888680276
10387296061
11189689299
12a98557b9
1362314089
1439618c45
15240045c6
hex1715ab3d

387296061 has 4 divisors (see below), whose sum is σ = 516394752. Its totient is φ = 258197372.

The previous prime is 387296053. The next prime is 387296083. The reversal of 387296061 is 160692783.

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 a cyclic number.

It is not a de Polignac number, because 387296061 - 23 = 387296053 is a prime.

It is a super-2 number, since 2×3872960612 = 299996477732231442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387296461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64549341 + ... + 64549346.

It is an arithmetic number, because the mean of its divisors is an integer number (129098688).

Almost surely, 2387296061 is an apocalyptic number.

It is an amenable number.

387296061 is a deficient number, since it is larger than the sum of its proper divisors (129098691).

387296061 is a wasteful number, since it uses less digits than its factorization.

387296061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129098690.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 387296061 is about 19679.8389475117. The cubic root of 387296061 is about 728.9219472320.

The spelling of 387296061 in words is "three hundred eighty-seven million, two hundred ninety-six thousand, sixty-one".

Divisors: 1 3 129098687 387296061