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198943448 = 23116137061
BaseRepresentation
bin10111101101110…
…10001011011000
3111212100101002212
423312322023120
5401412142243
631424014252
74633664024
oct1366721330
9455311085
10198943448
11a2331180
1256761388
13322a7422
141c5c9384
15126eb318
hexbdba2d8

198943448 has 32 divisors (see below), whose sum is σ = 413611920. Its totient is φ = 88944000.

The previous prime is 198943441. The next prime is 198943463. The reversal of 198943448 is 844349891.

It is a junction number, because it is equal to n+sod(n) for n = 198943396 and 198943405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198943441) 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, 13163 + ... + 23898.

Almost surely, 2198943448 is an apocalyptic number.

It is an amenable number.

198943448 is an abundant number, since it is smaller than the sum of its proper divisors (214668472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198943448 is a wasteful number, since it uses less digits than its factorization.

198943448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37139 (or 37135 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 198943448 is about 14104.7314047450. The cubic root of 198943448 is about 583.7719366568.

The spelling of 198943448 in words is "one hundred ninety-eight million, nine hundred forty-three thousand, four hundred forty-eight".

Divisors: 1 2 4 8 11 22 44 61 88 122 244 488 671 1342 2684 5368 37061 74122 148244 296488 407671 815342 1630684 2260721 3261368 4521442 9042884 18085768 24867931 49735862 99471724 198943448