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87669468 = 223223113937
BaseRepresentation
bin1010011100110…
…11101011011100
320002222001220100
411032123223130
5134420410333
612411021100
72113115055
oct516335334
9202861810
1087669468
114553a407
122543a790
1315217233
14b90172c
157a6b213
hex539badc

87669468 has 72 divisors (see below), whose sum is σ = 233539488. Its totient is φ = 27675648.

The previous prime is 87669403. The next prime is 87669481. The reversal of 87669468 is 86496678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93096 + ... + 94032.

It is an arithmetic number, because the mean of its divisors is an integer number (3243604).

Almost surely, 287669468 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 87669468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116769744).

87669468 is an abundant number, since it is smaller than the sum of its proper divisors (145870020).

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

87669468 is a wasteful number, since it uses less digits than its factorization.

87669468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1078 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 87669468 is about 9363.1975307584. The cubic root of 87669468 is about 444.2384280649.

The spelling of 87669468 in words is "eighty-seven million, six hundred sixty-nine thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 23 36 46 69 92 113 138 207 226 276 339 414 452 678 828 937 1017 1356 1874 2034 2599 2811 3748 4068 5198 5622 7797 8433 10396 11244 15594 16866 21551 23391 31188 33732 43102 46782 64653 86204 93564 105881 129306 193959 211762 258612 317643 387918 423524 635286 775836 952929 1270572 1905858 2435263 3811716 4870526 7305789 9741052 14611578 21917367 29223156 43834734 87669468