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198351241 = 11192341263
BaseRepresentation
bin10111101001010…
…01100110001001
3111211020021202021
423310221212021
5401234214431
631403204441
74625646334
oct1364514611
9454207667
10198351241
11a1a67250
1256516721
133212a9ca
141c4b361b
1512630b11
hexbd29989

198351241 has 16 divisors (see below), whose sum is σ = 237680640. Its totient is φ = 163397520.

The previous prime is 198351239. The next prime is 198351259. The reversal of 198351241 is 142153891.

198351241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 198351241 - 21 = 198351239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198351197 and 198351206.

It is not an unprimeable number, because it can be changed into a prime (198351221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15825 + ... + 25438.

It is an arithmetic number, because the mean of its divisors is an integer number (14855040).

Almost surely, 2198351241 is an apocalyptic number.

198351241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

198351241 is a deficient number, since it is larger than the sum of its proper divisors (39329399).

198351241 is a wasteful number, since it uses less digits than its factorization.

With its successor (198351242) it forms an eRAP, since the sums of their prime factors are consecutive (41316 and 41317).

198351241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41316.

The product of its digits is 8640, while the sum is 34.

The square root of 198351241 is about 14083.7225547793. The cubic root of 198351241 is about 583.1921111923.

The spelling of 198351241 in words is "one hundred ninety-eight million, three hundred fifty-one thousand, two hundred forty-one".

Divisors: 1 11 19 23 209 253 437 4807 41263 453893 783997 949049 8623967 10439539 18031931 198351241