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199997506 = 2377934211
BaseRepresentation
bin10111110101110…
…11100001000010
3111221022221000001
423322323201002
5402144410011
631502350214
74645644052
oct1372734102
9457287001
10199997506
11a29910a5
1256b8b36a
1332586127
141c7c1562
15128587c1
hexbebb842

199997506 has 16 divisors (see below), whose sum is σ = 312013440. Its totient is φ = 96061680.

The previous prime is 199997491. The next prime is 199997513. The reversal of 199997506 is 605799991.

199997506 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 11260 + ... + 22951.

It is an arithmetic number, because the mean of its divisors is an integer number (19500840).

Almost surely, 2199997506 is an apocalyptic number.

199997506 is a deficient number, since it is larger than the sum of its proper divisors (112015934).

199997506 is a wasteful number, since it uses less digits than its factorization.

199997506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34329.

The product of its (nonzero) digits is 1377810, while the sum is 55.

The square root of 199997506 is about 14142.0474472404. The cubic root of 199997506 is about 584.8011167991.

The spelling of 199997506 in words is "one hundred ninety-nine million, nine hundred ninety-seven thousand, five hundred six".

Divisors: 1 2 37 74 79 158 2923 5846 34211 68422 1265807 2531614 2702669 5405338 99998753 199997506