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28062807245 = 5111933181131
BaseRepresentation
bin11010001000101011…
…000111010011001101
32200102202010022111022
4122020223013103031
5424433034312440
620520351203525
72012264632364
oct321053072315
980382108438
1028062807245
11109a07a5490
1255322165a5
132852c3b6b5
14150305c7db
15ae3a20cb5
hex688ac74cd

28062807245 has 32 divisors (see below), whose sum is σ = 38787586560. Its totient is φ = 19276488000.

The previous prime is 28062807221. The next prime is 28062807247. The reversal of 28062807245 is 54270826082.

It is not a de Polignac number, because 28062807245 - 224 = 28046030029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28062807196 and 28062807205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28062807247) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 305330 + ... + 386460.

It is an arithmetic number, because the mean of its divisors is an integer number (1212112080).

Almost surely, 228062807245 is an apocalyptic number.

It is an amenable number.

28062807245 is a deficient number, since it is larger than the sum of its proper divisors (10724779315).

28062807245 is a wasteful number, since it uses less digits than its factorization.

28062807245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81497.

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 28062807245 in words is "twenty-eight billion, sixty-two million, eight hundred seven thousand, two hundred forty-five".

Divisors: 1 5 11 19 55 95 209 331 1045 1655 3641 6289 18205 31445 69179 81131 345895 405655 892441 1541489 4462205 7707445 16956379 26854361 84781895 134271805 295397971 510232859 1476989855 2551164295 5612561449 28062807245