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389228097 = 3137947027
BaseRepresentation
bin10111001100110…
…010011001000001
31000010101211120110
4113030302121001
51244120244342
6102342301533
712434245536
oct2714623101
91003354513
10389228097
1118a788915
12aa4278a9
136283c5ab
143999cd8d
1524286c9c
hex17332641

389228097 has 8 divisors (see below), whose sum is σ = 522759456. Its totient is φ = 257591072.

The previous prime is 389228087. The next prime is 389228101. The reversal of 389228097 is 790822983.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 389228097 - 228 = 120792641 is a prime.

It is a super-2 number, since 2×3892280972 = 302997022988482818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (389228017) 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 7 ways as a sum of consecutive naturals, for example, 473103 + ... + 473924.

It is an arithmetic number, because the mean of its divisors is an integer number (65344932).

Almost surely, 2389228097 is an apocalyptic number.

It is an amenable number.

389228097 is a deficient number, since it is larger than the sum of its proper divisors (133531359).

389228097 is a wasteful number, since it uses less digits than its factorization.

389228097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947167.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 389228097 is about 19728.8645643889. The cubic root of 389228097 is about 730.1320190330.

The spelling of 389228097 in words is "three hundred eighty-nine million, two hundred twenty-eight thousand, ninety-seven".

Divisors: 1 3 137 411 947027 2841081 129742699 389228097