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385860853 = 755122979
BaseRepresentation
bin10110111111111…
…100010011110101
3222220001202120201
4112333330103311
51242240021403
6102142200501
712363522520
oct2677742365
9886052521
10385860853
11188898a74
12a9283131
1361c30a41
1439363bb7
1523d1e21d
hex16ffc4f5

385860853 has 4 divisors (see below), whose sum is σ = 440983840. Its totient is φ = 330737868.

The previous prime is 385860841. The next prime is 385860869. The reversal of 385860853 is 358068583.

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 a cyclic number.

It is not a de Polignac number, because 385860853 - 217 = 385729781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385860823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27561483 + ... + 27561496.

It is an arithmetic number, because the mean of its divisors is an integer number (110245960).

Almost surely, 2385860853 is an apocalyptic number.

It is an amenable number.

385860853 is a deficient number, since it is larger than the sum of its proper divisors (55122987).

385860853 is an equidigital number, since it uses as much as digits as its factorization.

385860853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55122986.

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 385860853 is about 19643.3411872828. The cubic root of 385860853 is about 728.0204409237.

The spelling of 385860853 in words is "three hundred eighty-five million, eight hundred sixty thousand, eight hundred fifty-three".

Divisors: 1 7 55122979 385860853