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193990496 = 257866029
BaseRepresentation
bin10111001000000…
…00111101100000
3111112000201221012
423210000331200
5344130143441
631125520052
74543614650
oct1344007540
9445021835
10193990496
119a558a27
1254b73028
1331261b9b
141ba9a360
151206d9eb
hexb900f60

193990496 has 24 divisors (see below), whose sum is σ = 436479120. Its totient is φ = 83138688.

The previous prime is 193990481. The next prime is 193990543. The reversal of 193990496 is 694099391.

It is a happy number.

It is a congruent 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, 432791 + ... + 433238.

It is an arithmetic number, because the mean of its divisors is an integer number (18186630).

Almost surely, 2193990496 is an apocalyptic number.

193990496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

193990496 is an abundant number, since it is smaller than the sum of its proper divisors (242488624).

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

193990496 is an equidigital number, since it uses as much as digits as its factorization.

193990496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866046 (or 866038 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 50.

The square root of 193990496 is about 13928.0470992885. The cubic root of 193990496 is about 578.8865837393.

The spelling of 193990496 in words is "one hundred ninety-three million, nine hundred ninety thousand, four hundred ninety-six".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 866029 1732058 3464116 6062203 6928232 12124406 13856464 24248812 27712928 48497624 96995248 193990496