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87044 = 2247463
BaseRepresentation
bin10101010000000100
311102101212
4111100010
510241134
61510552
7511526
oct252004
9142355
1087044
115a441
1242458
1330809
1423a16
151abce
hex15404

87044 has 12 divisors (see below), whose sum is σ = 155904. Its totient is φ = 42504.

The previous prime is 87041. The next prime is 87049. The reversal of 87044 is 44078.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (87041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44 + ... + 419.

It is an arithmetic number, because the mean of its divisors is an integer number (12992).

287044 is an apocalyptic number.

It is an amenable number.

87044 is a deficient number, since it is larger than the sum of its proper divisors (68860).

87044 is a wasteful number, since it uses less digits than its factorization.

87044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 87044 is about 295.0322016323. The cubic root of 87044 is about 44.3179449233.

The spelling of 87044 in words is "eighty-seven thousand, forty-four".

Divisors: 1 2 4 47 94 188 463 926 1852 21761 43522 87044