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198343445 = 541967529
BaseRepresentation
bin10111101001001…
…11101100010101
3111211012220001112
423310213230111
5401233442240
631403104405
74625614526
oct1364475425
9454186045
10198343445
11a1a61403
1256512105
13321272b1
141c4b084d
151262d665
hexbd27b15

198343445 has 8 divisors (see below), whose sum is σ = 243817560. Its totient is φ = 154804480.

The previous prime is 198343423. The next prime is 198343447. The reversal of 198343445 is 544343891.

198343445 = 99582 + 99592.

It can be written as a sum of positive squares in 4 ways, for example, as 1249924 + 197093521 = 1118^2 + 14039^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 198343445 - 26 = 198343381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198343447) 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, 483560 + ... + 483969.

It is an arithmetic number, because the mean of its divisors is an integer number (30477195).

Almost surely, 2198343445 is an apocalyptic number.

198343445 is the 9959-th centered square number.

It is an amenable number.

198343445 is a deficient number, since it is larger than the sum of its proper divisors (45474115).

198343445 is an equidigital number, since it uses as much as digits as its factorization.

198343445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967575.

The product of its digits is 207360, while the sum is 41.

The square root of 198343445 is about 14083.4457786438. The cubic root of 198343445 is about 583.1844704951.

The spelling of 198343445 in words is "one hundred ninety-eight million, three hundred forty-three thousand, four hundred forty-five".

Divisors: 1 5 41 205 967529 4837645 39668689 198343445