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198039448 = 2371348661
BaseRepresentation
bin10111100110111…
…01011110011000
3111210122110001101
423303131132120
5401144230243
631352401144
74623210325
oct1363353630
9453573041
10198039448
11a1873a72
12563a61b4
133204bb09
141c431b4c
15125bd54d
hexbcdd798

198039448 has 16 divisors (see below), whose sum is σ = 376554960. Its totient is φ = 97624800.

The previous prime is 198039433. The next prime is 198039469. The reversal of 198039448 is 844930891.

It is a junction number, because it is equal to n+sod(n) for n = 198039398 and 198039407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173763 + ... + 174898.

It is an arithmetic number, because the mean of its divisors is an integer number (23534685).

Almost surely, 2198039448 is an apocalyptic number.

It is an amenable number.

198039448 is a deficient number, since it is larger than the sum of its proper divisors (178515512).

198039448 is a wasteful number, since it uses less digits than its factorization.

198039448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348738 (or 348734 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 198039448 is about 14072.6489333032. The cubic root of 198039448 is about 582.8863731199.

The spelling of 198039448 in words is "one hundred ninety-eight million, thirty-nine thousand, four hundred forty-eight".

Divisors: 1 2 4 8 71 142 284 568 348661 697322 1394644 2789288 24754931 49509862 99019724 198039448