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87474 = 2361239
BaseRepresentation
bin10101010110110010
311102222210
4111112302
510244344
61512550
7513012
oct252662
9142883
1087474
115a7a2
1242756
1330a7a
1423c42
151adb9
hex155b2

87474 has 16 divisors (see below), whose sum is σ = 178560. Its totient is φ = 28560.

The previous prime is 87473. The next prime is 87481. The reversal of 87474 is 47478.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 87474.

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 7 ways as a sum of consecutive naturals, for example, 247 + ... + 485.

It is an arithmetic number, because the mean of its divisors is an integer number (11160).

287474 is an apocalyptic number.

87474 is an abundant number, since it is smaller than the sum of its proper divisors (91086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89280).

87474 is a wasteful number, since it uses less digits than its factorization.

87474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305.

The product of its digits is 6272, while the sum is 30.

The square root of 87474 is about 295.7600378685. The cubic root of 87474 is about 44.3908024127.

It can be divided in two parts, 87 and 474, that added together give a triangular number (561 = T33).

The spelling of 87474 in words is "eighty-seven thousand, four hundred seventy-four".

Divisors: 1 2 3 6 61 122 183 239 366 478 717 1434 14579 29158 43737 87474