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196982900 = 22521969829
BaseRepresentation
bin10111011110110…
…11100001110100
3111201122202201222
423233123201310
5400411423100
631314005512
74611220112
oct1357334164
9451582658
10196982900
11a1212194
1255b76898
1331a6bc3a
141c238ab2
1512460485
hexbbdb874

196982900 has 18 divisors (see below), whose sum is σ = 427453110. Its totient is φ = 78793120.

The previous prime is 196982873. The next prime is 196982909. The reversal of 196982900 is 9289691.

It can be written as a sum of positive squares in 3 ways, for example, as 62283664 + 134699236 = 7892^2 + 11606^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196982909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 984815 + ... + 985014.

It is an arithmetic number, because the mean of its divisors is an integer number (23747395).

Almost surely, 2196982900 is an apocalyptic number.

196982900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196982900 is an abundant number, since it is smaller than the sum of its proper divisors (230470210).

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

196982900 is a wasteful number, since it uses less digits than its factorization.

196982900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969843 (or 1969836 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 196982900 is about 14035.0596721211. The cubic root of 196982900 is about 581.8479505809.

The spelling of 196982900 in words is "one hundred ninety-six million, nine hundred eighty-two thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1969829 3939658 7879316 9849145 19698290 39396580 49245725 98491450 196982900