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86749349 = 3715115527
BaseRepresentation
bin1010010101110…
…11000010100101
320001020022201212
411022323002211
5134201434344
612335201205
72102233361
oct512730245
9201208655
1086749349
1144a71085
1225076205
1314c8449b
14b7422a1
15793879e
hex52bb0a5

86749349 has 8 divisors (see below), whose sum is σ = 89689728. Its totient is φ = 83840400.

The previous prime is 86749343. The next prime is 86749367. The reversal of 86749349 is 94394768.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-86749349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86749297 and 86749306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86749343) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2177 + ... + 13350.

It is an arithmetic number, because the mean of its divisors is an integer number (11211216).

Almost surely, 286749349 is an apocalyptic number.

It is an amenable number.

86749349 is a deficient number, since it is larger than the sum of its proper divisors (2940379).

86749349 is a wasteful number, since it uses less digits than its factorization.

86749349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15715.

The product of its digits is 1306368, while the sum is 50.

The square root of 86749349 is about 9313.9330575219. The cubic root of 86749349 is about 442.6788177878.

The spelling of 86749349 in words is "eighty-six million, seven hundred forty-nine thousand, three hundred forty-nine".

Divisors: 1 37 151 5587 15527 574499 2344577 86749349