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86428054946 = 21811486916057
BaseRepresentation
bin101000001111110000…
…0110111010110100010
322021002022122002200002
41100133200313112202
52404001040224241
6103412101100002
76146524226402
oct1203740672642
9267068562602
1086428054946
1133721424992
12149006b7602
1381c4ab5a1c
14427c772802
1523ac9ac89b
hex141f8375a2

86428054946 has 16 divisors (see below), whose sum is σ = 130375223160. Its totient is φ = 42969709440.

The previous prime is 86428054931. The next prime is 86428054957. The reversal of 86428054946 is 64945082468.

It can be written as a sum of positive squares in 4 ways, for example, as 33815164321 + 52612890625 = 183889^2 + 229375^2 .

It is a junction number, because it is equal to n+sod(n) for n = 86428054891 and 86428054900.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5374550 + ... + 5390606.

Almost surely, 286428054946 is an apocalyptic number.

86428054946 is a deficient number, since it is larger than the sum of its proper divisors (43947168214).

86428054946 is a wasteful number, since it uses less digits than its factorization.

86428054946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31109.

The product of its (nonzero) digits is 13271040, while the sum is 56.

The spelling of 86428054946 in words is "eighty-six billion, four hundred twenty-eight million, fifty-four thousand, nine hundred forty-six".

Divisors: 1 2 181 362 14869 16057 29738 32114 2691289 2906317 5382578 5812634 238751533 477503066 43214027473 86428054946