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180472070 = 2519949853
BaseRepresentation
bin10101100000111…
…00100100000110
3110120120221010202
422300130210012
5332200101240
625524050502
74320662432
oct1260344406
9416527122
10180472070
1192965379
1250533a32
132b50aa0c
1419d7b9c2
1510c9d315
hexac1c906

180472070 has 16 divisors (see below), whose sum is σ = 341947440. Its totient is φ = 68389344.

The previous prime is 180472069. The next prime is 180472073. The reversal of 180472070 is 70274081.

180472070 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180472073) 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, 474737 + ... + 475116.

It is an arithmetic number, because the mean of its divisors is an integer number (21371715).

Almost surely, 2180472070 is an apocalyptic number.

180472070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180472070 is a deficient number, since it is larger than the sum of its proper divisors (161475370).

180472070 is a wasteful number, since it uses less digits than its factorization.

180472070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949879.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 180472070 is about 13433.9893553628. The cubic root of 180472070 is about 565.1147807633.

The spelling of 180472070 in words is "one hundred eighty million, four hundred seventy-two thousand, seventy".

Divisors: 1 2 5 10 19 38 95 190 949853 1899706 4749265 9498530 18047207 36094414 90236035 180472070