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189120260 = 22572358733
BaseRepresentation
bin10110100010110…
…11111100000100
3111011212022020002
423101123330010
5341403322020
630433300432
74454332010
oct1321337404
9434768202
10189120260
119783193a
1253404718
13302481a4
141b18d540
151190a975
hexb45bf04

189120260 has 48 divisors (see below), whose sum is σ = 473630976. Its totient is φ = 62020992.

The previous prime is 189120241. The next prime is 189120277. The reversal of 189120260 is 62021981.

189120260 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26147 + ... + 32586.

It is an arithmetic number, because the mean of its divisors is an integer number (9867312).

Almost surely, 2189120260 is an apocalyptic number.

189120260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

189120260 is an abundant number, since it is smaller than the sum of its proper divisors (284510716).

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

189120260 is a wasteful number, since it uses less digits than its factorization.

189120260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58772 (or 58770 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 189120260 is about 13752.1002032417. The cubic root of 189120260 is about 574.0010481270.

The spelling of 189120260 in words is "one hundred eighty-nine million, one hundred twenty thousand, two hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 70 92 115 140 161 230 322 460 644 805 1610 3220 58733 117466 234932 293665 411131 587330 822262 1174660 1350859 1644524 2055655 2701718 4111310 5403436 6754295 8222620 9456013 13508590 18912026 27017180 37824052 47280065 94560130 189120260