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385861293 = 3333742407
BaseRepresentation
bin10110111111111…
…100011010101101
3222220001210012000
4112333330122231
51242240030133
6102142202513
712363524016
oct2677743255
9886053160
10385861293
11188899334
12a9283439
1361c30cbc
143936400d
1523d1e413
hex16ffc6ad

385861293 has 16 divisors (see below), whose sum is σ = 573356160. Its totient is φ = 256471488.

The previous prime is 385861237. The next prime is 385861313. The reversal of 385861293 is 392168583.

It is a happy number.

It is not a de Polignac number, because 385861293 - 210 = 385860269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385861093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12105 + ... + 30302.

It is an arithmetic number, because the mean of its divisors is an integer number (35834760).

Almost surely, 2385861293 is an apocalyptic number.

It is an amenable number.

385861293 is a deficient number, since it is larger than the sum of its proper divisors (187494867).

385861293 is a wasteful number, since it uses less digits than its factorization.

385861293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42753 (or 42747 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 385861293 is about 19643.3523870036. The cubic root of 385861293 is about 728.0207176459.

The spelling of 385861293 in words is "three hundred eighty-five million, eight hundred sixty-one thousand, two hundred ninety-three".

Divisors: 1 3 9 27 337 1011 3033 9099 42407 127221 381663 1144989 14291159 42873477 128620431 385861293