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180745070 = 25111643137
BaseRepresentation
bin10101100010111…
…11001101101110
3110121002210121212
422301133031232
5332232320240
625533554422
74323210362
oct1261371556
9417083555
10180745070
11930314a0
1250645a12
132b5a505c
141a00d2a2
1510d04165
hexac5f36e

180745070 has 16 divisors (see below), whose sum is σ = 354917808. Its totient is φ = 65725440.

The previous prime is 180745069. The next prime is 180745073. The reversal of 180745070 is 70547081.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180745073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821459 + ... + 821678.

It is an arithmetic number, because the mean of its divisors is an integer number (22182363).

Almost surely, 2180745070 is an apocalyptic number.

180745070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180745070 is a deficient number, since it is larger than the sum of its proper divisors (174172738).

180745070 is a wasteful number, since it uses less digits than its factorization.

180745070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643155.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 180745070 is about 13444.1463098257. The cubic root of 180745070 is about 565.3995868078.

The spelling of 180745070 in words is "one hundred eighty million, seven hundred forty-five thousand, seventy".

Divisors: 1 2 5 10 11 22 55 110 1643137 3286274 8215685 16431370 18074507 36149014 90372535 180745070