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728055480 = 233516993571
BaseRepresentation
bin101011011001010…
…011111010111000
31212201222001100210
4223121103322320
52442340233410
6200124431120
724020240505
oct5331237270
91781861323
10728055480
11343a71949
121839a84a0
13b7ab3279
146c99c4ac
1543db5220
hex2b653eb8

728055480 has 64 divisors (see below), whose sum is σ = 2186064000. Its totient is φ = 193979520.

The previous prime is 728055479. The next prime is 728055539. The reversal of 728055480 is 84550827.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202095 + ... + 205665.

It is an arithmetic number, because the mean of its divisors is an integer number (34157250).

Almost surely, 2728055480 is an apocalyptic number.

It is an amenable number.

728055480 is an abundant number, since it is smaller than the sum of its proper divisors (1458008520).

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

728055480 is a wasteful number, since it uses less digits than its factorization.

728055480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5284 (or 5280 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 728055480 is about 26982.5032196792. The cubic root of 728055480 is about 899.6111406533.

The spelling of 728055480 in words is "seven hundred twenty-eight million, fifty-five thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 1699 3398 3571 5097 6796 7142 8495 10194 10713 13592 14284 16990 17855 20388 21426 25485 28568 33980 35710 40776 42852 50970 53565 67960 71420 85704 101940 107130 142840 203880 214260 428520 6067129 12134258 18201387 24268516 30335645 36402774 48537032 60671290 72805548 91006935 121342580 145611096 182013870 242685160 364027740 728055480