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193028 = 221141107
BaseRepresentation
bin101111001000000100
3100210210012
4233020010
522134103
64045352
71432523
oct571004
9323705
10193028
11122030
1293858
1369b24
14504ba
153c2d8
hex2f204

193028 has 24 divisors (see below), whose sum is σ = 381024. Its totient is φ = 84800.

The previous prime is 193013. The next prime is 193031. The reversal of 193028 is 820391.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 192994 and 193012.

It is an unprimeable number.

193028 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1751 + ... + 1857.

It is an arithmetic number, because the mean of its divisors is an integer number (15876).

2193028 is an apocalyptic number.

It is an amenable number.

193028 is a deficient number, since it is larger than the sum of its proper divisors (187996).

193028 is a wasteful number, since it uses less digits than its factorization.

193028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 193028 is about 439.3495191758. The cubic root of 193028 is about 57.7927601952.

The spelling of 193028 in words is "one hundred ninety-three thousand, twenty-eight".

Divisors: 1 2 4 11 22 41 44 82 107 164 214 428 451 902 1177 1804 2354 4387 4708 8774 17548 48257 96514 193028