Base | Representation |
---|---|
bin | 1000011101101… |
… | …01001110010000 |
3 | 11221121000102002 |
4 | 10032311032100 |
5 | 121133400010 |
6 | 11013413132 |
7 | 1521314663 |
oct | 416651620 |
9 | 157530362 |
10 | 70996880 |
11 | 37092009 |
12 | 1b93a1a8 |
13 | 1192a4b6 |
14 | 96016da |
15 | 63761a5 |
hex | 43b5390 |
70996880 has 40 divisors (see below), whose sum is σ = 167342712. Its totient is φ = 28007424.
The previous prime is 70996873. The next prime is 70996897. The reversal of 70996880 is 8869907.
It can be written as a sum of positive squares in 4 ways, for example, as 369664 + 70627216 = 608^2 + 8404^2 .
It is a tau number, because it is divible by the number of its divisors (40).
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, 239 + ... + 11918.
Almost surely, 270996880 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 70996880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83671356).
70996880 is an abundant number, since it is smaller than the sum of its proper divisors (96345832).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70996880 is a wasteful number, since it uses less digits than its factorization.
70996880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12243 (or 12237 counting only the distinct ones).
The product of its (nonzero) digits is 217728, while the sum is 47.
The square root of 70996880 is about 8425.9646332037. The cubic root of 70996880 is about 414.0757094303.
The spelling of 70996880 in words is "seventy million, nine hundred ninety-six thousand, eight hundred eighty".
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