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198931341 = 3742122501
BaseRepresentation
bin10111101101101…
…11001110001101
3111212022202111110
423312313032031
5401411300331
631423442233
74633613520
oct1366671615
9455282443
10198931341
11a2323074
1256756379
13322a1a6b
141c5c4bb7
15126e7946
hexbdb738d

198931341 has 16 divisors (see below), whose sum is σ = 303867008. Its totient is φ = 113400000.

The previous prime is 198931339. The next prime is 198931361. The reversal of 198931341 is 143139891.

It is a happy number.

It is not a de Polignac number, because 198931341 - 21 = 198931339 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 198931341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198931321) 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, 2410 + ... + 20091.

It is an arithmetic number, because the mean of its divisors is an integer number (18991688).

Almost surely, 2198931341 is an apocalyptic number.

It is an amenable number.

198931341 is a deficient number, since it is larger than the sum of its proper divisors (104935667).

198931341 is a wasteful number, since it uses less digits than its factorization.

198931341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22932.

The product of its digits is 23328, while the sum is 39.

The square root of 198931341 is about 14104.3022159907. The cubic root of 198931341 is about 583.7600943129.

The spelling of 198931341 in words is "one hundred ninety-eight million, nine hundred thirty-one thousand, three hundred forty-one".

Divisors: 1 3 7 21 421 1263 2947 8841 22501 67503 157507 472521 9472921 28418763 66310447 198931341