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197134180 = 2259856709
BaseRepresentation
bin10111100000000…
…00011101100100
3111201221110020221
423300000131210
5400431243210
631321134124
74612420135
oct1360003544
9451843227
10197134180
11a1305911
125602a344
1331ac2a59
141c277c8c
15124901da
hexbc00764

197134180 has 12 divisors (see below), whose sum is σ = 413981820. Its totient is φ = 78853664.

The previous prime is 197134169. The next prime is 197134181. The reversal of 197134180 is 81431791.

It can be written as a sum of positive squares in 2 ways, for example, as 84052224 + 113081956 = 9168^2 + 10634^2 .

It is not an unprimeable number, because it can be changed into a prime (197134181) 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 3 ways as a sum of consecutive naturals, for example, 4928335 + ... + 4928374.

It is an arithmetic number, because the mean of its divisors is an integer number (34498485).

Almost surely, 2197134180 is an apocalyptic number.

197134180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197134180 is an abundant number, since it is smaller than the sum of its proper divisors (216847640).

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

197134180 is a wasteful number, since it uses less digits than its factorization.

197134180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9856718 (or 9856716 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 197134180 is about 14040.4479985505. The cubic root of 197134180 is about 581.9968627189.

The spelling of 197134180 in words is "one hundred ninety-seven million, one hundred thirty-four thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 9856709 19713418 39426836 49283545 98567090 197134180