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199043107 = 1979132607
BaseRepresentation
bin10111101110100…
…10100000100011
3111212112102210221
423313102200203
5401423334412
631430103511
74634560414
oct1367224043
9455472727
10199043107
11a239a03a
12567aab97
13323108b3
141c61380b
151271ab07
hexbdd2823

199043107 has 8 divisors (see below), whose sum is σ = 212172800. Its totient is φ = 186178824.

The previous prime is 199043101. The next prime is 199043113. The reversal of 199043107 is 701340991.

199043107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (199043101) and next prime (199043113).

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-199043107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199043101) 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, 64803 + ... + 67804.

It is an arithmetic number, because the mean of its divisors is an integer number (26521600).

Almost surely, 2199043107 is an apocalyptic number.

199043107 is a deficient number, since it is larger than the sum of its proper divisors (13129693).

199043107 is a wasteful number, since it uses less digits than its factorization.

199043107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132705.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 199043107 is about 14108.2637840381. The cubic root of 199043107 is about 583.8693988856.

It can be divided in two parts, 199043 and 107, that multiplied together give a triangular number (21297601 = T6526).

The spelling of 199043107 in words is "one hundred ninety-nine million, forty-three thousand, one hundred seven".

Divisors: 1 19 79 1501 132607 2519533 10475953 199043107