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286398220897 = 3144942194877
BaseRepresentation
bin1000010101011101010…
…10100000101001100001
31000101020120210001112201
410022232222200221201
514143020421032042
6335323003453201
726456133465565
oct4125652405141
91011216701481
10286398220897
11100508369348
124760a227201
1321012b8a5c9
14dc0c8c96a5
1576b34dc1b7
hex42aeaa0a61

286398220897 has 16 divisors (see below), whose sum is σ = 296426304000. Its totient is φ = 276420049920.

The previous prime is 286398220879. The next prime is 286398220957. The reversal of 286398220897 is 798022893682.

It is a cyclic number.

It is not a de Polignac number, because 286398220897 - 211 = 286398218849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (286398220807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58721823 + ... + 58726699.

It is an arithmetic number, because the mean of its divisors is an integer number (18526644000).

Almost surely, 2286398220897 is an apocalyptic number.

It is an amenable number.

286398220897 is a deficient number, since it is larger than the sum of its proper divisors (10028083103).

286398220897 is a wasteful number, since it uses less digits than its factorization.

286398220897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9576.

The product of its (nonzero) digits is 41803776, while the sum is 64.

The spelling of 286398220897 in words is "two hundred eighty-six billion, three hundred ninety-eight million, two hundred twenty thousand, eight hundred ninety-seven".

Divisors: 1 31 449 4219 4877 13919 130789 151187 1894331 2189773 20576063 58724261 67882963 637857953 9238652287 286398220897