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87542416 = 24132329631
BaseRepresentation
bin1010011011111…
…00101010010000
320002201121121201
411031330222100
5134402324131
612404200544
72112045463
oct515745220
9202647551
1087542416
1145462a05
1225399154
13151a1460
14b8ab2da
157a43761
hex537ca90

87542416 has 80 divisors (see below), whose sum is σ = 197487360. Its totient is φ = 37255680.

The previous prime is 87542383. The next prime is 87542431. The reversal of 87542416 is 61424578.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138421 + ... + 139051.

It is an arithmetic number, because the mean of its divisors is an integer number (2468592).

Almost surely, 287542416 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 87542416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98743680).

87542416 is an abundant number, since it is smaller than the sum of its proper divisors (109944944).

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

87542416 is a wasteful number, since it uses less digits than its factorization.

87542416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704 (or 698 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 87542416 is about 9356.4104228064. The cubic root of 87542416 is about 444.0237251614.

The spelling of 87542416 in words is "eighty-seven million, five hundred forty-two thousand, four hundred sixteen".

Divisors: 1 2 4 8 13 16 23 26 29 46 52 58 92 104 116 184 208 232 299 368 377 464 598 631 667 754 1196 1262 1334 1508 2392 2524 2668 3016 4784 5048 5336 6032 8203 8671 10096 10672 14513 16406 17342 18299 29026 32812 34684 36598 58052 65624 69368 73196 116104 131248 138736 146392 188669 232208 237887 292784 377338 420877 475774 754676 841754 951548 1509352 1683508 1903096 3018704 3367016 3806192 5471401 6734032 10942802 21885604 43771208 87542416