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3085378345 = 57212593381
BaseRepresentation
bin1011011111100111…
…0010001100101001
321222000200110102001
42313321302030221
522304324101340
61230054211001
7136313166100
oct26771621451
97860613361
103085378345
111343685465
12721353a61
133a22a897a
14213aad037
15130d0b29a
hexb7e72329

3085378345 has 12 divisors (see below), whose sum is σ = 4306936644. Its totient is φ = 2115687840.

The previous prime is 3085378337. The next prime is 3085378367. The reversal of 3085378345 is 5438735803.

It can be written as a sum of positive squares in 2 ways, for example, as 1748159721 + 1337218624 = 41811^2 + 36568^2 .

It is not a de Polignac number, because 3085378345 - 23 = 3085378337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3085378295 and 3085378304.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6296446 + ... + 6296935.

It is an arithmetic number, because the mean of its divisors is an integer number (358911387).

Almost surely, 23085378345 is an apocalyptic number.

3085378345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3085378345 is a deficient number, since it is larger than the sum of its proper divisors (1221558299).

3085378345 is a wasteful number, since it uses less digits than its factorization.

3085378345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12593400 (or 12593393 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 46.

The square root of 3085378345 is about 55546.1820920214. The cubic root of 3085378345 is about 1455.8036671290.

The spelling of 3085378345 in words is "three billion, eighty-five million, three hundred seventy-eight thousand, three hundred forty-five".

Divisors: 1 5 7 35 49 245 12593381 62966905 88153667 440768335 617075669 3085378345