Base | Representation |
---|---|
bin | 1000011100000… |
… | …10100001011100 |
3 | 11221012110112200 |
4 | 10032002201130 |
5 | 121110223322 |
6 | 11005131500 |
7 | 1516461354 |
oct | 416024134 |
9 | 157173480 |
10 | 70789212 |
11 | 36a5aa8a |
12 | 1b859b90 |
13 | 11886b10 |
14 | 9589b64 |
15 | 63348ac |
hex | 438285c |
70789212 has 108 divisors (see below), whose sum is σ = 203865480. Its totient is φ = 20585664.
The previous prime is 70789157. The next prime is 70789217. The reversal of 70789212 is 21298707.
It is a super-2 number, since 2×707892122 = 10022225071161888, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70789217) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 168739 + ... + 169157.
Almost surely, 270789212 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 70789212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101932740).
70789212 is an abundant number, since it is smaller than the sum of its proper divisors (133076268).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70789212 is a wasteful number, since it uses less digits than its factorization.
70789212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 480 (or 456 counting only the distinct ones).
The product of its (nonzero) digits is 14112, while the sum is 36.
The square root of 70789212 is about 8413.6325092079. The cubic root of 70789212 is about 413.6715872007.
It can be divided in two parts, 7078 and 9212, that added together give a triangular number (16290 = T180).
The spelling of 70789212 in words is "seventy million, seven hundred eighty-nine thousand, two hundred twelve".
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