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86678425 = 5216272131
BaseRepresentation
bin1010010101010…
…01101110011001
320001002201110001
411022221232121
5134142202200
612333453001
72101516531
oct512515631
9201081401
1086678425
1144a22869
1225041161
1314c5b112
14b7244c1
15792276a
hex52a9b99

86678425 has 12 divisors (see below), whose sum is σ = 107597776. Its totient is φ = 69267600.

The previous prime is 86678413. The next prime is 86678429. The reversal of 86678425 is 52487668.

It is not a de Polignac number, because 86678425 - 27 = 86678297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86678429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39610 + ... + 41740.

Almost surely, 286678425 is an apocalyptic number.

It is an amenable number.

86678425 is a deficient number, since it is larger than the sum of its proper divisors (20919351).

86678425 is a wasteful number, since it uses less digits than its factorization.

86678425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768 (or 3763 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The square root of 86678425 is about 9310.1248648984. The cubic root of 86678425 is about 442.5581440189.

The spelling of 86678425 in words is "eighty-six million, six hundred seventy-eight thousand, four hundred twenty-five".

Divisors: 1 5 25 1627 2131 8135 10655 40675 53275 3467137 17335685 86678425