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193928814 = 23217876029
BaseRepresentation
bin10111000111100…
…01111001101110
3111111220121022200
423203301321232
5344121210224
631124322330
74543240062
oct1343617156
9444817280
10193928814
119a516652
1254b433a6
133123caa1
141ba81aa2
151205a5c9
hexb8f1e6e

193928814 has 24 divisors (see below), whose sum is σ = 420483960. Its totient is φ = 64596048.

The previous prime is 193928783. The next prime is 193928837. The reversal of 193928814 is 418829391.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 193928814.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 29152 + ... + 35180.

It is an arithmetic number, because the mean of its divisors is an integer number (17520165).

Almost surely, 2193928814 is an apocalyptic number.

193928814 is an abundant number, since it is smaller than the sum of its proper divisors (226555146).

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

193928814 is a wasteful number, since it uses less digits than its factorization.

193928814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7824 (or 7821 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 193928814 is about 13925.8326142461. The cubic root of 193928814 is about 578.8252221981.

The spelling of 193928814 in words is "one hundred ninety-three million, nine hundred twenty-eight thousand, eight hundred fourteen".

Divisors: 1 2 3 6 9 18 1787 3574 5361 6029 10722 12058 16083 18087 32166 36174 54261 108522 10773823 21547646 32321469 64642938 96964407 193928814