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86942207 = 1153197757
BaseRepresentation
bin1010010111010…
…10000111111111
320001121010021202
411023222013333
5134224122312
612343250115
72103665552
oct513520777
9201533252
1086942207
1145092a70
122514993b
13150211c1
14b792699
1579759c2
hex52ea1ff

86942207 has 16 divisors (see below), whose sum is σ = 97254432. Its totient is φ = 77051520.

The previous prime is 86942201. The next prime is 86942209. The reversal of 86942207 is 70224968.

It is a cyclic number.

It is not a de Polignac number, because 86942207 - 26 = 86942143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86942201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114473 + ... + 115229.

It is an arithmetic number, because the mean of its divisors is an integer number (6078402).

Almost surely, 286942207 is an apocalyptic number.

86942207 is a deficient number, since it is larger than the sum of its proper divisors (10312225).

86942207 is a wasteful number, since it uses less digits than its factorization.

86942207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 86942207 is about 9324.2805084360. The cubic root of 86942207 is about 443.0066241385.

It can be divided in two parts, 8694 and 2207, that added together give a palindrome (10901).

The spelling of 86942207 in words is "eighty-six million, nine hundred forty-two thousand, two hundred seven".

Divisors: 1 11 53 197 583 757 2167 8327 10441 40121 114851 149129 441331 1640419 7903837 86942207