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87680632 = 23134120563
BaseRepresentation
bin1010011100111…
…10011001111000
320002222122012211
411032132121320
5134421240012
612411144504
72113162444
oct516363170
9202878184
1087680632
1145547836
1225445134
131521c340
14b905824
157a6e6a7
hex539e678

87680632 has 32 divisors (see below), whose sum is σ = 181374480. Its totient is φ = 39479040.

The previous prime is 87680629. The next prime is 87680641. The reversal of 87680632 is 23608678.

It is a happy number.

87680632 is nontrivially palindromic in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6018 + ... + 14545.

Almost surely, 287680632 is an apocalyptic number.

87680632 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

87680632 is an abundant number, since it is smaller than the sum of its proper divisors (93693848).

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

87680632 is a wasteful number, since it uses less digits than its factorization.

87680632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20623 (or 20619 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 87680632 is about 9363.7936756424. The cubic root of 87680632 is about 444.2572839920.

The spelling of 87680632 in words is "eighty-seven million, six hundred eighty thousand, six hundred thirty-two".

Divisors: 1 2 4 8 13 26 41 52 82 104 164 328 533 1066 2132 4264 20563 41126 82252 164504 267319 534638 843083 1069276 1686166 2138552 3372332 6744664 10960079 21920158 43840316 87680632