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385326993 = 3314143301
BaseRepresentation
bin10110111101111…
…001111110010001
3222212001122021010
4112331321332101
51242120430433
6102122521133
712356140212
oct2675717621
9885048233
10385326993
11188563967
12a90661a9
1361aa4a4c
1439265409
1523c65e63
hex16f79f91

385326993 has 8 divisors (see below), whose sum is σ = 530342656. Its totient is φ = 248598000.

The previous prime is 385326967. The next prime is 385327001. The reversal of 385326993 is 399623583.

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

It is not a de Polignac number, because 385326993 - 25 = 385326961 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 (385326493) 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 7 ways as a sum of consecutive naturals, for example, 2071558 + ... + 2071743.

It is an arithmetic number, because the mean of its divisors is an integer number (66292832).

Almost surely, 2385326993 is an apocalyptic number.

It is an amenable number.

385326993 is a deficient number, since it is larger than the sum of its proper divisors (145015663).

385326993 is a wasteful number, since it uses less digits than its factorization.

385326993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143335.

The product of its digits is 1049760, while the sum is 48.

The square root of 385326993 is about 19629.7476550260. The cubic root of 385326993 is about 727.6845336726.

The spelling of 385326993 in words is "three hundred eighty-five million, three hundred twenty-six thousand, nine hundred ninety-three".

Divisors: 1 3 31 93 4143301 12429903 128442331 385326993