Base | Representation |
---|---|
bin | 1000011100110… |
… | …10011011110000 |
3 | 11221101102220002 |
4 | 10032122123300 |
5 | 121121342102 |
6 | 11011205132 |
7 | 1520350040 |
oct | 416323360 |
9 | 157342802 |
10 | 70887152 |
11 | 37017626 |
12 | 1b8a67a8 |
13 | 118bc57b |
14 | 95b3720 |
15 | 6353902 |
hex | 439a6f0 |
70887152 has 40 divisors (see below), whose sum is σ = 157418496. Its totient is φ = 30292416.
The previous prime is 70887137. The next prime is 70887191. The reversal of 70887152 is 25178807.
It is a super-2 number, since 2×708871522 = 10049976637342208, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
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, 51173 + ... + 52539.
Almost surely, 270887152 is an apocalyptic number.
It is an amenable number.
70887152 is an abundant number, since it is smaller than the sum of its proper divisors (86531344).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70887152 is a wasteful number, since it uses less digits than its factorization.
70887152 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1845 (or 1839 counting only the distinct ones).
The product of its (nonzero) digits is 31360, while the sum is 38.
The square root of 70887152 is about 8419.4508134438. The cubic root of 70887152 is about 413.8622769197.
The spelling of 70887152 in words is "seventy million, eight hundred eighty-seven thousand, one hundred fifty-two".
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