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193994032 = 2431391117
BaseRepresentation
bin10111001000000…
…01110100110000
3111112000220210011
423210001310300
5344130302112
631125544304
74543631161
oct1344016460
9445026704
10193994032
119a560651
1254b75094
133126368b
141ba9b768
151206eaa7
hexb901d30

193994032 has 20 divisors (see below), whose sum is σ = 387989056. Its totient is φ = 93867840.

The previous prime is 193993999. The next prime is 193994057. The reversal of 193994032 is 230499391.

193994032 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195063 + ... + 196054.

Almost surely, 2193994032 is an apocalyptic number.

It is an amenable number.

193994032 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

193994032 is a wasteful number, since it uses less digits than its factorization.

193994032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391156 (or 391150 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 193994032 is about 13928.1740368219. The cubic root of 193994032 is about 578.8901009743.

The spelling of 193994032 in words is "one hundred ninety-three million, nine hundred ninety-four thousand, thirty-two".

Divisors: 1 2 4 8 16 31 62 124 248 496 391117 782234 1564468 3128936 6257872 12124627 24249254 48498508 96997016 193994032