Base | Representation |
---|---|
bin | 1000010111111… |
… | …11001101101100 |
3 | 11220012010202200 |
4 | 10023333031230 |
5 | 120441020442 |
6 | 10545421500 |
7 | 1512061332 |
oct | 413771554 |
9 | 156163680 |
10 | 70251372 |
11 | 36722994 |
12 | 1b63a890 |
13 | 11729079 |
14 | 9489b52 |
15 | 627a34c |
hex | 42ff36c |
70251372 has 36 divisors (see below), whose sum is σ = 179219040. Its totient is φ = 23200992.
The previous prime is 70251371. The next prime is 70251397. The reversal of 70251372 is 27315207.
It is a tau number, because it is divible by the number of its divisors (36).
It is not an unprimeable number, because it can be changed into a prime (70251371) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5028 + ... + 12875.
Almost surely, 270251372 is an apocalyptic number.
It is an amenable number.
70251372 is an abundant number, since it is smaller than the sum of its proper divisors (108967668).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70251372 is a wasteful number, since it uses less digits than its factorization.
70251372 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18022 (or 18017 counting only the distinct ones).
The product of its (nonzero) digits is 2940, while the sum is 27.
The square root of 70251372 is about 8381.6091533786. The cubic root of 70251372 is about 412.6212624207.
Adding to 70251372 its reverse (27315207), we get a palindrome (97566579).
The spelling of 70251372 in words is "seventy million, two hundred fifty-one thousand, three hundred seventy-two".
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