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199202399 = 11131138239
BaseRepresentation
bin10111101111110…
…01011001011111
3111212211112022122
423313321121133
5401443434044
631433333155
74636123004
oct1367713137
9455745278
10199202399
11a2498790
12568671bb
1332368256
141c6558ab
151274cdee
hexbdf965f

199202399 has 8 divisors (see below), whose sum is σ = 218972160. Its totient is φ = 179709400.

The previous prime is 199202387. The next prime is 199202411. The reversal of 199202399 is 993202991.

It is an interprime number because it is at equal distance from previous prime (199202387) and next prime (199202411).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-199202399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199202329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67679 + ... + 70560.

It is an arithmetic number, because the mean of its divisors is an integer number (27371520).

Almost surely, 2199202399 is an apocalyptic number.

199202399 is a deficient number, since it is larger than the sum of its proper divisors (19769761).

199202399 is a wasteful number, since it uses less digits than its factorization.

199202399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138381.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 199202399 is about 14113.9079988499. The cubic root of 199202399 is about 584.0251120981.

The spelling of 199202399 in words is "one hundred ninety-nine million, two hundred two thousand, three hundred ninety-nine".

Divisors: 1 11 131 1441 138239 1520629 18109309 199202399