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199161354 = 23741115657
BaseRepresentation
bin10111101111011…
…11011000001010
3111212202110000110
423313233120022
5401441130404
631432415150
74635562230
oct1367573012
9455673013
10199161354
11a246a967
12568474b6
1332352672
141c644950
1512740b89
hexbdef60a

199161354 has 32 divisors (see below), whose sum is σ = 466333056. Its totient is φ = 55514880.

The previous prime is 199161331. The next prime is 199161383. The reversal of 199161354 is 453161991.

It is a super-2 number, since 2×1991613542 = 79330489854226632, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 56107 + ... + 59550.

It is an arithmetic number, because the mean of its divisors is an integer number (14572908).

Almost surely, 2199161354 is an apocalyptic number.

199161354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

199161354 is an abundant number, since it is smaller than the sum of its proper divisors (267171702).

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

199161354 is a wasteful number, since it uses less digits than its factorization.

199161354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115710.

The product of its digits is 29160, while the sum is 39.

The square root of 199161354 is about 14112.4538617492. The cubic root of 199161354 is about 583.9849971907.

The spelling of 199161354 in words is "one hundred ninety-nine million, one hundred sixty-one thousand, three hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 41 42 82 123 246 287 574 861 1722 115657 231314 346971 693942 809599 1619198 2428797 4741937 4857594 9483874 14225811 28451622 33193559 66387118 99580677 199161354