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199230773 = 728461539
BaseRepresentation
bin10111110000000…
…00010100110101
3111212212222020112
423320000110311
5402000341043
631434112405
74636301510
oct1370002465
9455788215
10199230773
11a2508035
125687b705
1332378141
141c661d77
1512756518
hexbe00535

199230773 has 4 divisors (see below), whose sum is σ = 227692320. Its totient is φ = 170769228.

The previous prime is 199230727. The next prime is 199230809. The reversal of 199230773 is 377032991.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 377032991 = 2143175937.

It is not a de Polignac number, because 199230773 - 26 = 199230709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 199230773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199230673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14230763 + ... + 14230776.

It is an arithmetic number, because the mean of its divisors is an integer number (56923080).

Almost surely, 2199230773 is an apocalyptic number.

It is an amenable number.

199230773 is a deficient number, since it is larger than the sum of its proper divisors (28461547).

199230773 is an equidigital number, since it uses as much as digits as its factorization.

199230773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28461546.

The product of its (nonzero) digits is 71442, while the sum is 41.

The square root of 199230773 is about 14114.9131417802. The cubic root of 199230773 is about 584.0528399131.

The spelling of 199230773 in words is "one hundred ninety-nine million, two hundred thirty thousand, seven hundred seventy-three".

Divisors: 1 7 28461539 199230773