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86125405 = 579337647
BaseRepresentation
bin1010010001000…
…10101101011101
320000001121211211
411020202231131
5134022003110
612313544421
72064024322
oct510425535
9200047754
1086125405
1144685323
1224a15111
1314ac64a2
14b61cb49
15786398a
hex5222b5d

86125405 has 16 divisors (see below), whose sum is σ = 105131520. Its totient is φ = 67721472.

The previous prime is 86125397. The next prime is 86125433. The reversal of 86125405 is 50452168.

It is a cyclic number.

It is not a de Polignac number, because 86125405 - 23 = 86125397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132792 + ... + 133438.

It is an arithmetic number, because the mean of its divisors is an integer number (6570720).

Almost surely, 286125405 is an apocalyptic number.

It is an amenable number.

86125405 is a deficient number, since it is larger than the sum of its proper divisors (19006115).

86125405 is a wasteful number, since it uses less digits than its factorization.

86125405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 86125405 is about 9280.3774168942. The cubic root of 86125405 is about 441.6149417690.

The spelling of 86125405 in words is "eighty-six million, one hundred twenty-five thousand, four hundred five".

Divisors: 1 5 79 337 395 647 1685 3235 26623 51113 133115 218039 255565 1090195 17225081 86125405