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3085720 = 235117013
BaseRepresentation
bin1011110001010110011000
312210202210221
423301112120
51242220340
6150045424
735141161
oct13612630
95722727
103085720
111818390
121049874
13840691
145a4768
1540e44a
hex2f1598

3085720 has 32 divisors (see below), whose sum is σ = 7575120. Its totient is φ = 1121920.

The previous prime is 3085717. The next prime is 3085727. The reversal of 3085720 is 275803.

3085720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3085727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3067 + ... + 3946.

Almost surely, 23085720 is an apocalyptic number.

It is an amenable number.

3085720 is an abundant number, since it is smaller than the sum of its proper divisors (4489400).

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

3085720 is a wasteful number, since it uses less digits than its factorization.

3085720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7035 (or 7031 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 3085720 is about 1756.6217578067. The cubic root of 3085720 is about 145.5857400598.

The spelling of 3085720 in words is "three million, eighty-five thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 7013 14026 28052 35065 56104 70130 77143 140260 154286 280520 308572 385715 617144 771430 1542860 3085720