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87070370 = 258707037
BaseRepresentation
bin1010011000010…
…01011010100010
320001211122002112
411030021122202
5134242222440
612350115322
72105041322
oct514113242
9201748075
1087070370
1145170292
12251abb42
131506763a
14b7c7282
15799d965
hex53096a2

87070370 has 8 divisors (see below), whose sum is σ = 156726684. Its totient is φ = 34828144.

The previous prime is 87070349. The next prime is 87070411. The reversal of 87070370 is 7307078.

It can be written as a sum of positive squares in 2 ways, for example, as 87067561 + 2809 = 9331^2 + 53^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4353509 + ... + 4353528.

Almost surely, 287070370 is an apocalyptic number.

87070370 is a deficient number, since it is larger than the sum of its proper divisors (69656314).

87070370 is a wasteful number, since it uses less digits than its factorization.

87070370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8707044.

The product of its (nonzero) digits is 8232, while the sum is 32.

The square root of 87070370 is about 9331.1505185588. The cubic root of 87070370 is about 443.2241984870.

The spelling of 87070370 in words is "eighty-seven million, seventy thousand, three hundred seventy".

Divisors: 1 2 5 10 8707037 17414074 43535185 87070370