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198014047 = 7211379929
BaseRepresentation
bin10111100110101…
…11010001011111
3111210121011012121
423303113101133
5401142422142
631352043411
74623043300
oct1363272137
9453534177
10198014047
11a1856980
1256393567
133204039a
141c4267a7
15125b5c67
hexbcd745f

198014047 has 24 divisors (see below), whose sum is σ = 258100560. Its totient is φ = 150111360.

The previous prime is 198014041. The next prime is 198014083. The reversal of 198014047 is 740410891.

It is not a de Polignac number, because 198014047 - 23 = 198014039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198014041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14979 + ... + 24907.

It is an arithmetic number, because the mean of its divisors is an integer number (10754190).

Almost surely, 2198014047 is an apocalyptic number.

198014047 is a deficient number, since it is larger than the sum of its proper divisors (60086513).

198014047 is a wasteful number, since it uses less digits than its factorization.

198014047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9991 (or 9984 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 198014047 is about 14071.7464090283. The cubic root of 198014047 is about 582.8614512672.

The spelling of 198014047 in words is "one hundred ninety-eight million, fourteen thousand, forty-seven".

Divisors: 1 7 11 37 49 77 259 407 539 1813 2849 9929 19943 69503 109219 367373 486521 764533 2571611 4041103 5351731 18001277 28287721 198014047