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87416544 = 2531396551
BaseRepresentation
bin1010011010111…
…01111011100000
320002111012221210
411031131323200
5134334312134
612401350120
72111012505
oct515357340
9202435853
1087416544
1145387386
1225338340
1315159087
14b8774ac
157a1b2e9
hex535dee0

87416544 has 48 divisors (see below), whose sum is σ = 231154560. Its totient is φ = 28924800.

The previous prime is 87416543. The next prime is 87416561. The reversal of 87416544 is 44561478.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87416543) 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, 10069 + ... + 16619.

It is an arithmetic number, because the mean of its divisors is an integer number (4815720).

Almost surely, 287416544 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 87416544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115577280).

87416544 is an abundant number, since it is smaller than the sum of its proper divisors (143738016).

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

87416544 is a wasteful number, since it uses less digits than its factorization.

87416544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6703 (or 6695 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 87416544 is about 9349.6814919012. The cubic root of 87416544 is about 443.8108113711.

The spelling of 87416544 in words is "eighty-seven million, four hundred sixteen thousand, five hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 139 278 417 556 834 1112 1668 2224 3336 4448 6551 6672 13102 13344 19653 26204 39306 52408 78612 104816 157224 209632 314448 628896 910589 1821178 2731767 3642356 5463534 7284712 10927068 14569424 21854136 29138848 43708272 87416544