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197669130 = 23523286477
BaseRepresentation
bin10111100100000…
…11000100001010
3111202221122001220
423302003010022
5401100403010
631340422510
74620105561
oct1362030412
9452848056
10197669130
11a164081a
1256247a36
1331c4c3a9
141c376bd8
1512548970
hexbc8310a

197669130 has 32 divisors (see below), whose sum is σ = 495033984. Its totient is φ = 50419776.

The previous prime is 197669093. The next prime is 197669137. The reversal of 197669130 is 31966791.

It is not an unprimeable number, because it can be changed into a prime (197669137) 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 15 ways as a sum of consecutive naturals, for example, 142549 + ... + 143928.

It is an arithmetic number, because the mean of its divisors is an integer number (15469812).

Almost surely, 2197669130 is an apocalyptic number.

197669130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197669130 is an abundant number, since it is smaller than the sum of its proper divisors (297364854).

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

197669130 is a wasteful number, since it uses less digits than its factorization.

197669130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286510.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 197669130 is about 14059.4854102133. The cubic root of 197669130 is about 582.5228293901.

The spelling of 197669130 in words is "one hundred ninety-seven million, six hundred sixty-nine thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 286477 572954 859431 1432385 1718862 2864770 4297155 6588971 8594310 13177942 19766913 32944855 39533826 65889710 98834565 197669130