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198380374 = 21312632879
BaseRepresentation
bin10111101001100…
…00101101010110
3111211021202201021
423310300231112
5401241132444
631403551354
74626130303
oct1364605526
9454252637
10198380374
11a1a87125
125652b55a
133213b04a
141c4c00aa
1512639584
hexbd30b56

198380374 has 16 divisors (see below), whose sum is σ = 301086720. Its totient is φ = 98024680.

The previous prime is 198380363. The next prime is 198380389. The reversal of 198380374 is 473083891.

It is a happy number.

It is a super-3 number, since 3×1983803743 (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 198380374.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67467 + ... + 70345.

It is an arithmetic number, because the mean of its divisors is an integer number (18817920).

Almost surely, 2198380374 is an apocalyptic number.

198380374 is a deficient number, since it is larger than the sum of its proper divisors (102706346).

198380374 is a wasteful number, since it uses less digits than its factorization.

198380374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 198380374 is about 14084.7567959124. The cubic root of 198380374 is about 583.2206620665.

The spelling of 198380374 in words is "one hundred ninety-eight million, three hundred eighty thousand, three hundred seventy-four".

Divisors: 1 2 131 262 263 526 2879 5758 34453 68906 377149 754298 757177 1514354 99190187 198380374