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86004389 = 239359851
BaseRepresentation
bin1010010000001…
…01001010100101
312222211110211202
411020011022211
5134004120024
612311212245
72063011442
oct510051245
9188743752
1086004389
1144602409
1224977085
1314a83393
14b5ca9c9
15783cbae
hex52052a5

86004389 has 4 divisors (see below), whose sum is σ = 86364480. Its totient is φ = 85644300.

The previous prime is 86004341. The next prime is 86004421. The reversal of 86004389 is 98340068.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86004389 - 224 = 69227173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86004329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179687 + ... + 180164.

It is an arithmetic number, because the mean of its divisors is an integer number (21591120).

Almost surely, 286004389 is an apocalyptic number.

It is an amenable number.

86004389 is a deficient number, since it is larger than the sum of its proper divisors (360091).

86004389 is a wasteful number, since it uses less digits than its factorization.

86004389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360090.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 86004389 is about 9273.8551314974. The cubic root of 86004389 is about 441.4080050575.

The spelling of 86004389 in words is "eighty-six million, four thousand, three hundred eighty-nine".

Divisors: 1 239 359851 86004389