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180018070 = 25108716561
BaseRepresentation
bin10101011101011…
…01101110010110
3110112201212100221
422232231232112
5332041034240
625510224554
74314062011
oct1256555626
9415655327
10180018070
1192685271
125035515a
132b3ac18b
1419ca0378
1510c0da4a
hexabadb96

180018070 has 16 divisors (see below), whose sum is σ = 324350208. Its totient is φ = 71936640.

The previous prime is 180018031. The next prime is 180018107. The reversal of 180018070 is 70810081.

It is a congruent number.

It is an unprimeable number.

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, 2590 + ... + 19150.

It is an arithmetic number, because the mean of its divisors is an integer number (20271888).

Almost surely, 2180018070 is an apocalyptic number.

180018070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180018070 is a deficient number, since it is larger than the sum of its proper divisors (144332138).

180018070 is a wasteful number, since it uses less digits than its factorization.

180018070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17655.

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 180018070 is about 13417.0812772376. The cubic root of 180018070 is about 564.6405106087.

The spelling of 180018070 in words is "one hundred eighty million, eighteen thousand, seventy".

Divisors: 1 2 5 10 1087 2174 5435 10870 16561 33122 82805 165610 18001807 36003614 90009035 180018070