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40230198 = 2324351977
BaseRepresentation
bin1001100101110…
…1110100110110
32210200220110100
42121131310312
540244331243
63554134530
7665644131
oct231356466
983626410
1040230198
11207885a8
1211581446
138447568
1454b3218
1537ea0d3
hex265dd36

40230198 has 24 divisors (see below), whose sum is σ = 89194248. Its totient is φ = 13097952.

The previous prime is 40230191. The next prime is 40230247. The reversal of 40230198 is 89103204.

It is a super-3 number, since 3×402301983 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40230191) 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, 25215 + ... + 26762.

It is an arithmetic number, because the mean of its divisors is an integer number (3716427).

Almost surely, 240230198 is an apocalyptic number.

40230198 is an abundant number, since it is smaller than the sum of its proper divisors (48964050).

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

40230198 is a wasteful number, since it uses less digits than its factorization.

40230198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52028 (or 52025 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 40230198 is about 6342.7279620050. The cubic root of 40230198 is about 342.6499898939.

The spelling of 40230198 in words is "forty million, two hundred thirty thousand, one hundred ninety-eight".

Divisors: 1 2 3 6 9 18 43 86 129 258 387 774 51977 103954 155931 311862 467793 935586 2235011 4470022 6705033 13410066 20115099 40230198