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385913667 = 3128637889
BaseRepresentation
bin10111000000001…
…001001101000011
3222220011110000210
4113000021031003
51242243214132
6102143245203
712364132506
oct2700111503
9886143023
10385913667
11188924717
12a92a9803
1361c4baa9
143937913d
1523d2ebcc
hex17009343

385913667 has 4 divisors (see below), whose sum is σ = 514551560. Its totient is φ = 257275776.

The previous prime is 385913641. The next prime is 385913681. The reversal of 385913667 is 766319583.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 385913667 - 26 = 385913603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385913687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64318942 + ... + 64318947.

It is an arithmetic number, because the mean of its divisors is an integer number (128637890).

Almost surely, 2385913667 is an apocalyptic number.

385913667 is a deficient number, since it is larger than the sum of its proper divisors (128637893).

385913667 is a wasteful number, since it uses less digits than its factorization.

385913667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128637892.

The product of its digits is 816480, while the sum is 48.

The square root of 385913667 is about 19644.6854645220. The cubic root of 385913667 is about 728.0536548980.

The spelling of 385913667 in words is "three hundred eighty-five million, nine hundred thirteen thousand, six hundred sixty-seven".

Divisors: 1 3 128637889 385913667