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198894942 = 23213184349
BaseRepresentation
bin10111101101011…
…10010101011110
3111212020220120100
423312232111132
5401404114232
631423001530
74633402431
oct1366562536
9455226510
10198894942
11a22a8794
12567392a6
133228b31c
141c5b5818
15126dbc7c
hexbdae55e

198894942 has 24 divisors (see below), whose sum is σ = 434233800. Its totient is φ = 65791440.

The previous prime is 198894923. The next prime is 198894967. The reversal of 198894942 is 249498891.

198894942 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39817 + ... + 44532.

It is an arithmetic number, because the mean of its divisors is an integer number (18093075).

Almost surely, 2198894942 is an apocalyptic number.

198894942 is an abundant number, since it is smaller than the sum of its proper divisors (235338858).

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

198894942 is a wasteful number, since it uses less digits than its factorization.

198894942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84488 (or 84485 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 54.

The square root of 198894942 is about 14103.0118059938. The cubic root of 198894942 is about 583.7244880921.

The spelling of 198894942 in words is "one hundred ninety-eight million, eight hundred ninety-four thousand, nine hundred forty-two".

Divisors: 1 2 3 6 9 18 131 262 393 786 1179 2358 84349 168698 253047 506094 759141 1518282 11049719 22099438 33149157 66298314 99447471 198894942