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180140252 = 2297464279
BaseRepresentation
bin10101011110010…
…11100011011100
3110112222001222012
422233023203130
5332103442002
625513010352
74315111145
oct1257134334
9415861865
10180140252
1192759046
12503b39b8
132b422986
1419cd2acc
1510c34d52
hexabcb8dc

180140252 has 12 divisors (see below), whose sum is σ = 318496080. Its totient is φ = 89141376.

The previous prime is 180140249. The next prime is 180140263. The reversal of 180140252 is 252041081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231752 + ... + 232527.

It is an arithmetic number, because the mean of its divisors is an integer number (26541340).

Almost surely, 2180140252 is an apocalyptic number.

It is an amenable number.

180140252 is a deficient number, since it is larger than the sum of its proper divisors (138355828).

180140252 is a wasteful number, since it uses less digits than its factorization.

180140252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464380 (or 464378 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 180140252 is about 13421.6337306604. The cubic root of 180140252 is about 564.7682261295.

The spelling of 180140252 in words is "one hundred eighty million, one hundred forty thousand, two hundred fifty-two".

Divisors: 1 2 4 97 194 388 464279 928558 1857116 45035063 90070126 180140252