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198825796 = 221321971493
BaseRepresentation
bin10111101100111…
…01011101000100
3111212010101201101
423312131131010
5401344411141
631421305444
74632664021
oct1366353504
9455111641
10198825796
11a2260844
1256705284
1332265a00
141c598548
15126c6531
hexbd9d744

198825796 has 36 divisors (see below), whose sum is σ = 378935172. Its totient is φ = 91238784.

The previous prime is 198825791. The next prime is 198825797. The reversal of 198825796 is 697528891.

It can be written as a sum of positive squares in 6 ways, for example, as 3944196 + 194881600 = 1986^2 + 13960^2 .

It is not an unprimeable number, because it can be changed into a prime (198825791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132426 + ... + 133918.

It is an arithmetic number, because the mean of its divisors is an integer number (10525977).

Almost surely, 2198825796 is an apocalyptic number.

It is an amenable number.

198825796 is a deficient number, since it is larger than the sum of its proper divisors (180109376).

198825796 is a wasteful number, since it uses less digits than its factorization.

198825796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720 (or 1705 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 55.

The square root of 198825796 is about 14100.5601307182. The cubic root of 198825796 is about 583.6568361426.

The spelling of 198825796 in words is "one hundred ninety-eight million, eight hundred twenty-five thousand, seven hundred ninety-six".

Divisors: 1 2 4 13 26 52 169 197 338 394 676 788 1493 2561 2986 5122 5972 10244 19409 33293 38818 66586 77636 133172 252317 294121 504634 588242 1009268 1176484 3823573 7647146 15294292 49706449 99412898 198825796