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197228260 = 2259861413
BaseRepresentation
bin10111100000101…
…11011011100100
3111202010020022101
423300113123210
5400442301020
631323141444
74613261335
oct1360273344
9452106271
10197228260
11a136a569
1256074884
1331b26818
141c2a028c
15124ad00a
hexbc176e4

197228260 has 12 divisors (see below), whose sum is σ = 414179388. Its totient is φ = 78891296.

The previous prime is 197228249. The next prime is 197228281. The reversal of 197228260 is 62822791.

It can be written as a sum of positive squares in 2 ways, for example, as 38266596 + 158961664 = 6186^2 + 12608^2 .

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, 4930687 + ... + 4930726.

It is an arithmetic number, because the mean of its divisors is an integer number (34514949).

Almost surely, 2197228260 is an apocalyptic number.

197228260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197228260 is an abundant number, since it is smaller than the sum of its proper divisors (216951128).

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

197228260 is a wasteful number, since it uses less digits than its factorization.

197228260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9861422 (or 9861420 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 197228260 is about 14043.7979193664. The cubic root of 197228260 is about 582.0894317445.

The spelling of 197228260 in words is "one hundred ninety-seven million, two hundred twenty-eight thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 9861413 19722826 39445652 49307065 98614130 197228260