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385609001 = 991389111
BaseRepresentation
bin10110111110111…
…110110100101001
3222212120222002212
4112332332310221
51242203442001
6102132534505
712361423331
oct2676766451
9885528085
10385609001
11188736828
12a9181435
1361b7320b
14392da0c1
1523cbe7bb
hex16fbed29

385609001 has 4 divisors (see below), whose sum is σ = 385999104. Its totient is φ = 385218900.

The previous prime is 385608989. The next prime is 385609013. The reversal of 385609001 is 100906583.

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 an interprime number because it is at equal distance from previous prime (385608989) and next prime (385609013).

It is a cyclic number.

It is not a de Polignac number, because 385609001 - 214 = 385592617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (385609051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193565 + ... + 195546.

It is an arithmetic number, because the mean of its divisors is an integer number (96499776).

Almost surely, 2385609001 is an apocalyptic number.

It is an amenable number.

385609001 is a deficient number, since it is larger than the sum of its proper divisors (390103).

385609001 is an equidigital number, since it uses as much as digits as its factorization.

385609001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390102.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 385609001 is about 19636.9295206761. The cubic root of 385609001 is about 727.8620130786.

The spelling of 385609001 in words is "three hundred eighty-five million, six hundred nine thousand, one".

Divisors: 1 991 389111 385609001