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199299101 = 1427139663
BaseRepresentation
bin10111110000100…
…01000000011101
3111220000102222012
423320101000131
5402010032401
631435401005
74640004641
oct1370210035
9456012865
10199299101
11a2554401
12568b3165
13323a0281
141c67cc21
151276b8bb
hexbe1101d

199299101 has 4 divisors (see below), whose sum is σ = 199440192. Its totient is φ = 199158012.

The previous prime is 199299083. The next prime is 199299169. The reversal of 199299101 is 101992991.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 199299101 - 222 = 195104797 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 (199299701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68405 + ... + 71258.

It is an arithmetic number, because the mean of its divisors is an integer number (49860048).

Almost surely, 2199299101 is an apocalyptic number.

It is an amenable number.

199299101 is a deficient number, since it is larger than the sum of its proper divisors (141091).

199299101 is a wasteful number, since it uses less digits than its factorization.

199299101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141090.

The product of its (nonzero) digits is 13122, while the sum is 41.

The square root of 199299101 is about 14117.3333530097. Note that the first 4 decimals coincide. The cubic root of 199299101 is about 584.1196010205.

The spelling of 199299101 in words is "one hundred ninety-nine million, two hundred ninety-nine thousand, one hundred one".

Divisors: 1 1427 139663 199299101