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385450369 = 2112696791
BaseRepresentation
bin10110111110011…
…000000110000001
3222212021220111121
4112332120012001
51242133402434
6102125312241
712360163003
oct2676300601
9885256447
10385450369
11188638627
12a9105681
1361b18c55
1439298373
1523c8c7b4
hex16f98181

385450369 has 8 divisors (see below), whose sum is σ = 388774080. Its totient is φ = 382141200.

The previous prime is 385450361. The next prime is 385450391. The reversal of 385450369 is 963054583.

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 385450369 - 23 = 385450361 is a prime.

It is a super-2 number, since 2×3854503692 = 297143973924472322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385450361) 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, 53364 + ... + 60154.

It is an arithmetic number, because the mean of its divisors is an integer number (48596760).

Almost surely, 2385450369 is an apocalyptic number.

It is an amenable number.

385450369 is a deficient number, since it is larger than the sum of its proper divisors (3323711).

385450369 is a wasteful number, since it uses less digits than its factorization.

385450369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7271.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 385450369 is about 19632.8899808459. The cubic root of 385450369 is about 727.7621899909.

The spelling of 385450369 in words is "three hundred eighty-five million, four hundred fifty thousand, three hundred sixty-nine".

Divisors: 1 211 269 6791 56759 1432901 1826779 385450369