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193830012 = 22325384167
BaseRepresentation
bin10111000110110…
…01110001111100
3111111201120210100
423203121301330
5344110030022
631122241100
74542346035
oct1343316174
9444646710
10193830012
119a4593a2
1254ab6190
1331206b1c
141ba57a8c
151203b1ac
hexb8d9c7c

193830012 has 18 divisors (see below), whose sum is σ = 489959288. Its totient is φ = 64609992.

The previous prime is 193829969. The next prime is 193830017. The reversal of 193830012 is 210038391.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193830017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2692048 + ... + 2692119.

Almost surely, 2193830012 is an apocalyptic number.

193830012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

193830012 is an abundant number, since it is smaller than the sum of its proper divisors (296129276).

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

193830012 is a wasteful number, since it uses less digits than its factorization.

193830012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5384177 (or 5384172 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 193830012 is about 13922.2847262940. The cubic root of 193830012 is about 578.7269063894.

The spelling of 193830012 in words is "one hundred ninety-three million, eight hundred thirty thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 5384167 10768334 16152501 21536668 32305002 48457503 64610004 96915006 193830012