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199996884 = 22338920807
BaseRepresentation
bin10111110101110…
…11010111010100
3111221022220011000
423322323113110
5402144400014
631502343300
74645642203
oct1372732724
9457286130
10199996884
11a299068a
1256b8ab30
1332585a69
141c7c123a
1512858509
hexbebb5d4

199996884 has 48 divisors (see below), whose sum is σ = 524361600. Its totient is φ = 65913408.

The previous prime is 199996871. The next prime is 199996897. The reversal of 199996884 is 488699991.

199996884 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (199996871) and next prime (199996897).

199996884 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 792 + ... + 20015.

It is an arithmetic number, because the mean of its divisors is an integer number (10924200).

Almost surely, 2199996884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199996884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262180800).

199996884 is an abundant number, since it is smaller than the sum of its proper divisors (324364716).

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

199996884 is a wasteful number, since it uses less digits than its factorization.

199996884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20909 (or 20901 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 63.

The square root of 199996884 is about 14142.0254560653. The cubic root of 199996884 is about 584.8005105470.

The spelling of 199996884 in words is "one hundred ninety-nine million, nine hundred ninety-six thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 89 108 178 267 356 534 801 1068 1602 2403 3204 4806 9612 20807 41614 62421 83228 124842 187263 249684 374526 561789 749052 1123578 1851823 2247156 3703646 5555469 7407292 11110938 16666407 22221876 33332814 49999221 66665628 99998442 199996884