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87097380 = 22351451623
BaseRepresentation
bin1010011000100…
…00000000100100
320001220000010220
411030100000210
5134244104010
612350444340
72105213136
oct514200044
9201800126
1087097380
1145189607
12252036b0
1315076a16
14b7d3056
1579a6970
hex5310024

87097380 has 24 divisors (see below), whose sum is σ = 243872832. Its totient is φ = 23225952.

The previous prime is 87097379. The next prime is 87097453. The reversal of 87097380 is 8379078.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725752 + ... + 725871.

It is an arithmetic number, because the mean of its divisors is an integer number (10161368).

Almost surely, 287097380 is an apocalyptic number.

It is an amenable number.

87097380 is an abundant number, since it is smaller than the sum of its proper divisors (156775452).

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

87097380 is a wasteful number, since it uses less digits than its factorization.

87097380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451635 (or 1451633 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 87097380 is about 9332.5977091054. The cubic root of 87097380 is about 443.2700244395.

The spelling of 87097380 in words is "eighty-seven million, ninety-seven thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1451623 2903246 4354869 5806492 7258115 8709738 14516230 17419476 21774345 29032460 43548690 87097380