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86741421 = 31313916001
BaseRepresentation
bin1010010101110…
…01000110101101
320001012220212020
411022321012231
5134201211141
612335100353
72102201304
oct512710655
9201186766
1086741421
1144a66128
12250716b9
1314c809b0
14b73d43b
157936266
hex52b91ad

86741421 has 16 divisors (see below), whose sum is σ = 125455680. Its totient is φ = 52992000.

The previous prime is 86741419. The next prime is 86741477. The reversal of 86741421 is 12414768.

It is not a de Polignac number, because 86741421 - 21 = 86741419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86741491) 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, 2580 + ... + 13421.

It is an arithmetic number, because the mean of its divisors is an integer number (7840980).

Almost surely, 286741421 is an apocalyptic number.

It is an amenable number.

86741421 is a deficient number, since it is larger than the sum of its proper divisors (38714259).

86741421 is a wasteful number, since it uses less digits than its factorization.

86741421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16156.

The product of its digits is 10752, while the sum is 33.

The square root of 86741421 is about 9313.5074488616. The cubic root of 86741421 is about 442.6653319437.

The spelling of 86741421 in words is "eighty-six million, seven hundred forty-one thousand, four hundred twenty-one".

Divisors: 1 3 13 39 139 417 1807 5421 16001 48003 208013 624039 2224139 6672417 28913807 86741421