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87134316 = 223171014229
BaseRepresentation
bin1010011000110…
…01000001101100
320001221212210220
411030121001230
5134301244231
612351331340
72105425623
oct514310154
9201855726
1087134316
1145204335
1225220b50
131508a789
14b8026ba
1579b2896
hex531906c

87134316 has 48 divisors (see below), whose sum is σ = 217455840. Its totient is φ = 27059200.

The previous prime is 87134309. The next prime is 87134317. The reversal of 87134316 is 61343178.

It is not an unprimeable number, because it can be changed into a prime (87134317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18490 + ... + 22718.

It is an arithmetic number, because the mean of its divisors is an integer number (4530330).

Almost surely, 287134316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87134316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108727920).

87134316 is an abundant number, since it is smaller than the sum of its proper divisors (130321524).

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

87134316 is a wasteful number, since it uses less digits than its factorization.

87134316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4354 (or 4352 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

The square root of 87134316 is about 9334.5763696056. The cubic root of 87134316 is about 443.3326757988.

The spelling of 87134316 in words is "eighty-seven million, one hundred thirty-four thousand, three hundred sixteen".

Divisors: 1 2 3 4 6 12 17 34 51 68 101 102 202 204 303 404 606 1212 1717 3434 4229 5151 6868 8458 10302 12687 16916 20604 25374 50748 71893 143786 215679 287572 427129 431358 854258 862716 1281387 1708516 2562774 5125548 7261193 14522386 21783579 29044772 43567158 87134316