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728076105 = 325195316067
BaseRepresentation
bin101011011001011…
…000111101001001
31212202000002122200
4223121120331021
52442341413410
6200125110413
724020354601
oct5331307511
91782002580
10728076105
11343a86399
121839b8409
13b7abc783
146c9a5c01
1543dbb3c0
hex2b658f49

728076105 has 48 divisors (see below), whose sum is σ = 1353568320. Its totient is φ = 360906624.

The previous prime is 728076071. The next prime is 728076149. The reversal of 728076105 is 501670827.

It is not a de Polignac number, because 728076105 - 213 = 728067913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 728076105.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37282 + ... + 53348.

It is an arithmetic number, because the mean of its divisors is an integer number (28199340).

Almost surely, 2728076105 is an apocalyptic number.

It is an amenable number.

728076105 is a deficient number, since it is larger than the sum of its proper divisors (625492215).

728076105 is a wasteful number, since it uses less digits than its factorization.

728076105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16150 (or 16147 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 728076105 is about 26982.8854090885. The cubic root of 728076105 is about 899.6196355666.

The spelling of 728076105 in words is "seven hundred twenty-eight million, seventy-six thousand, one hundred five".

Divisors: 1 3 5 9 15 19 45 53 57 95 159 171 265 285 477 795 855 1007 2385 3021 5035 9063 15105 16067 45315 48201 80335 144603 241005 305273 723015 851551 915819 1526365 2554653 2747457 4257755 4579095 7663959 12773265 13737285 16179469 38319795 48538407 80897345 145615221 242692035 728076105