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198235238 = 2613314909
BaseRepresentation
bin10111101000011…
…01010001100110
3111211000101121212
423310031101212
5401222011423
631400511422
74624654205
oct1364152146
9454011555
10198235238
11a1998083
125647b572
13320b9c76
141c48323c
151260b578
hexbd0d466

198235238 has 16 divisors (see below), whose sum is σ = 303202320. Its totient is φ = 97178400.

The previous prime is 198235231. The next prime is 198235259. The reversal of 198235238 is 832532891.

198235238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 198235195 and 198235204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198235231) 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, 37928 + ... + 42836.

It is an arithmetic number, because the mean of its divisors is an integer number (18950145).

Almost surely, 2198235238 is an apocalyptic number.

198235238 is a deficient number, since it is larger than the sum of its proper divisors (104967082).

198235238 is a wasteful number, since it uses less digits than its factorization.

198235238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5303.

The product of its digits is 103680, while the sum is 41.

The square root of 198235238 is about 14079.6036165796. The cubic root of 198235238 is about 583.0783983885.

The spelling of 198235238 in words is "one hundred ninety-eight million, two hundred thirty-five thousand, two hundred thirty-eight".

Divisors: 1 2 61 122 331 662 4909 9818 20191 40382 299449 598898 1624879 3249758 99117619 198235238