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198415396 = 2270432
BaseRepresentation
bin10111101001110…
…01010000100100
3111211100112202101
423310321100210
5401243243041
631404421444
74626334354
oct1364712044
9454315671
10198415396
11a2000473
1256547884
1332150c7a
141c4ccb64
1512644b31
hexbd39424

198415396 has 9 divisors (see below), whose sum is σ = 347276251. Its totient is φ = 99193612.

The previous prime is 198415391. The next prime is 198415397. The reversal of 198415396 is 693514891.

The square root of 198415396 is 14086.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198415391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 24651 + ... + 31693.

Almost surely, 2198415396 is an apocalyptic number.

198415396 is the 14086-th square number.

It is an amenable number.

198415396 is a deficient number, since it is larger than the sum of its proper divisors (148860855).

198415396 is an frugal number, since it uses more digits than its factorization.

198415396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14090 (or 7045 counting only the distinct ones).

The product of its digits is 233280, while the sum is 46.

The cubic root of 198415396 is about 583.2549805692.

The spelling of 198415396 in words is "one hundred ninety-eight million, four hundred fifteen thousand, three hundred ninety-six".

Divisors: 1 2 4 7043 14086 28172 49603849 99207698 198415396