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196981208 = 23198914561
BaseRepresentation
bin10111011110110…
…11000111011000
3111201122200102022
423233123013120
5400411344313
631313554012
74611212144
oct1357330730
9451580368
10196981208
11a1210996
1255b75908
1331a6b238
141c238224
151245ec08
hexbbdb1d8

196981208 has 32 divisors (see below), whose sum is σ = 393174000. Its totient is φ = 92252160.

The previous prime is 196981201. The next prime is 196981219. The reversal of 196981208 is 802189691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196981201) 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 7 ways as a sum of consecutive naturals, for example, 6248 + ... + 20808.

Almost surely, 2196981208 is an apocalyptic number.

It is an amenable number.

196981208 is a deficient number, since it is larger than the sum of its proper divisors (196192792).

196981208 is a wasteful number, since it uses less digits than its factorization.

196981208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14675 (or 14671 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 196981208 is about 14034.9993943712. Note that the first 3 decimals coincide. The cubic root of 196981208 is about 581.8462846333.

The spelling of 196981208 in words is "one hundred ninety-six million, nine hundred eighty-one thousand, two hundred eight".

Divisors: 1 2 4 8 19 38 76 89 152 178 356 712 1691 3382 6764 13528 14561 29122 58244 116488 276659 553318 1106636 1295929 2213272 2591858 5183716 10367432 24622651 49245302 98490604 196981208