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199115092 = 22117361991
BaseRepresentation
bin10111101111001…
…00000101010100
3111212200002120001
423313210011110
5401433140332
631431421044
74635310321
oct1367440524
9455602501
10199115092
11a2439130
1256824784
13323375a7
141c631b48
15127320e7
hexbde4154

199115092 has 24 divisors (see below), whose sum is σ = 385342272. Its totient is φ = 89265600.

The previous prime is 199115087. The next prime is 199115099. The reversal of 199115092 is 290511991.

199115092 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199115099) 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, 27784 + ... + 34207.

It is an arithmetic number, because the mean of its divisors is an integer number (16055928).

Almost surely, 2199115092 is an apocalyptic number.

It is an amenable number.

199115092 is a deficient number, since it is larger than the sum of its proper divisors (186227180).

199115092 is a wasteful number, since it uses less digits than its factorization.

199115092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62079 (or 62077 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 37.

The square root of 199115092 is about 14110.8147177971. The cubic root of 199115092 is about 583.9397768949.

The spelling of 199115092 in words is "one hundred ninety-nine million, one hundred fifteen thousand, ninety-two".

Divisors: 1 2 4 11 22 44 73 146 292 803 1606 3212 61991 123982 247964 681901 1363802 2727604 4525343 9050686 18101372 49778773 99557546 199115092