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198132941 = 613248081
BaseRepresentation
bin10111100111101…
…00010011001101
3111210211012022002
423303310103031
5401210223231
631354402045
74624050026
oct1363642315
9453735262
10198132941
11a1928236
1256430325
1332082536
141c457c4d
15125db0cb
hexbcf44cd

198132941 has 4 divisors (see below), whose sum is σ = 201381084. Its totient is φ = 194884800.

The previous prime is 198132937. The next prime is 198132967. The reversal of 198132941 is 149231891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 149231891 = 199749909.

It can be written as a sum of positive squares in 2 ways, for example, as 53436100 + 144696841 = 7310^2 + 12029^2 .

It is a cyclic number.

It is not a de Polignac number, because 198132941 - 22 = 198132937 is a prime.

It is a super-3 number, since 3×1981329413 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198132895 and 198132904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198132911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1623980 + ... + 1624101.

It is an arithmetic number, because the mean of its divisors is an integer number (50345271).

Almost surely, 2198132941 is an apocalyptic number.

It is an amenable number.

198132941 is a deficient number, since it is larger than the sum of its proper divisors (3248143).

198132941 is an equidigital number, since it uses as much as digits as its factorization.

198132941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3248142.

The product of its digits is 15552, while the sum is 38.

The square root of 198132941 is about 14075.9703395539. The cubic root of 198132941 is about 582.9780841784.

The spelling of 198132941 in words is "one hundred ninety-eight million, one hundred thirty-two thousand, nine hundred forty-one".

Divisors: 1 61 3248081 198132941