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3085340640 = 25356427793
BaseRepresentation
bin1011011111100110…
…1000111111100000
321222000121112200120
42313321220333200
522304321400030
61230053320240
7136312651134
oct26771507740
97860545616
103085340640
11134365a0a8
12721336080
133a2294765
14213a9d3c4
15130d00010
hexb7e68fe0

3085340640 has 48 divisors (see below), whose sum is σ = 9718824528. Its totient is φ = 822757376.

The previous prime is 3085340623. The next prime is 3085340677. The reversal of 3085340640 is 460435803.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

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, 3213417 + ... + 3214376.

It is an arithmetic number, because the mean of its divisors is an integer number (202475511).

Almost surely, 23085340640 is an apocalyptic number.

3085340640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3085340640 is an abundant number, since it is smaller than the sum of its proper divisors (6633483888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3085340640 is a wasteful number, since it uses less digits than its factorization.

3085340640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6427811 (or 6427803 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 3085340640 is about 55545.8426887197. The cubic root of 3085340640 is about 1455.7977368675.

The spelling of 3085340640 in words is "three billion, eighty-five million, three hundred forty thousand, six hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 6427793 12855586 19283379 25711172 32138965 38566758 51422344 64277930 77133516 96416895 102844688 128555860 154267032 192833790 205689376 257111720 308534064 385667580 514223440 617068128 771335160 1028446880 1542670320 3085340640