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87408953 = 1093472311
BaseRepresentation
bin1010011010111…
…00000100111001
320002110211112122
411031130010321
5134334041303
612401251025
72110651412
oct515340471
9202424478
1087408953
1145381705
1225333a75
1315155798
14b874809
157a18e38
hex535c139

87408953 has 8 divisors (see below), whose sum is σ = 88503360. Its totient is φ = 86320080.

The previous prime is 87408941. The next prime is 87408967. The reversal of 87408953 is 35980478.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87408953 - 26 = 87408889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87408253) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 36668 + ... + 38978.

It is an arithmetic number, because the mean of its divisors is an integer number (11062920).

Almost surely, 287408953 is an apocalyptic number.

It is an amenable number.

87408953 is a deficient number, since it is larger than the sum of its proper divisors (1094407).

87408953 is a wasteful number, since it uses less digits than its factorization.

87408953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 87408953 is about 9349.2755334304. The cubic root of 87408953 is about 443.7979645833.

The spelling of 87408953 in words is "eighty-seven million, four hundred eight thousand, nine hundred fifty-three".

Divisors: 1 109 347 2311 37823 251899 801917 87408953