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87470 = 258747
BaseRepresentation
bin10101010110101110
311102222122
4111112232
510244340
61512542
7513005
oct252656
9142878
1087470
115a799
1242752
1330a76
1423c3c
151adb5
hex155ae

87470 has 8 divisors (see below), whose sum is σ = 157464. Its totient is φ = 34984.

The previous prime is 87443. The next prime is 87473. The reversal of 87470 is 7478.

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

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87473) 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, 4364 + ... + 4383.

It is an arithmetic number, because the mean of its divisors is an integer number (19683).

287470 is an apocalyptic number.

87470 is a deficient number, since it is larger than the sum of its proper divisors (69994).

87470 is a wasteful number, since it uses less digits than its factorization.

87470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8754.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 87470 is about 295.7532755524. The cubic root of 87470 is about 44.3901257700.

The spelling of 87470 in words is "eighty-seven thousand, four hundred seventy".

Divisors: 1 2 5 10 8747 17494 43735 87470