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86406648 = 23317211781
BaseRepresentation
bin1010010011001…
…11010111111000
320000120220122020
411021213113320
5134110003043
612323554440
72066305266
oct511472770
9200526566
1086406648
1144857659
1224b2ba20
1314b944c3
14b693436
1578bbe83
hex52675f8

86406648 has 32 divisors (see below), whose sum is σ = 228724560. Its totient is φ = 27107840.

The previous prime is 86406647. The next prime is 86406659. The reversal of 86406648 is 84660468.

It is a super-2 number, since 2×864066482 = 14932217637191808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86406643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105483 + ... + 106298.

Almost surely, 286406648 is an apocalyptic number.

It is an amenable number.

86406648 is an abundant number, since it is smaller than the sum of its proper divisors (142317912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86406648 is a wasteful number, since it uses less digits than its factorization.

86406648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211807 (or 211803 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 86406648 is about 9295.5176294814. The cubic root of 86406648 is about 442.0951181763.

The spelling of 86406648 in words is "eighty-six million, four hundred six thousand, six hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 211781 423562 635343 847124 1270686 1694248 2541372 3600277 5082744 7200554 10800831 14401108 21601662 28802216 43203324 86406648