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194007868 = 22191253937
BaseRepresentation
bin10111001000001…
…01001100111100
3111112001121202121
423210011030330
5344131222433
631130132324
74544016415
oct1344051474
9445047677
10194007868
119a56aa8a
1254b810a4
1331269a72
141baa280c
1512073c2d
hexb90533c

194007868 has 12 divisors (see below), whose sum is σ = 341292672. Its totient is φ = 96495680.

The previous prime is 194007851. The next prime is 194007881. The reversal of 194007868 is 868700491.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126205 + ... + 127732.

It is an arithmetic number, because the mean of its divisors is an integer number (28441056).

Almost surely, 2194007868 is an apocalyptic number.

It is an amenable number.

194007868 is a deficient number, since it is larger than the sum of its proper divisors (147284804).

194007868 is a wasteful number, since it uses less digits than its factorization.

194007868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254132 (or 254130 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 194007868 is about 13928.6707190600. The cubic root of 194007868 is about 578.9038631383.

The spelling of 194007868 in words is "one hundred ninety-four million, seven thousand, eight hundred sixty-eight".

Divisors: 1 2 4 191 382 764 253937 507874 1015748 48501967 97003934 194007868