Base | Representation |
---|---|
bin | 1000011011101… |
… | …10010000010000 |
3 | 11221002220121111 |
4 | 10031312100100 |
5 | 121102121320 |
6 | 11004103104 |
7 | 1516162015 |
oct | 415662020 |
9 | 157086544 |
10 | 70738960 |
11 | 36a26256 |
12 | 1b834a94 |
13 | 11869c96 |
14 | 957570c |
15 | 6324a5a |
hex | 4376410 |
70738960 has 40 divisors (see below), whose sum is σ = 164822040. Its totient is φ = 28234752.
The previous prime is 70738949. The next prime is 70738973. The reversal of 70738960 is 6983707.
It can be written as a sum of positive squares in 4 ways, for example, as 41319184 + 29419776 = 6428^2 + 5424^2 .
It is a tau number, because it is divible by the number of its divisors (40).
It is a super-3 number, since 3×707389603 (a number of 25 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (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, 64174 + ... + 65266.
It is an arithmetic number, because the mean of its divisors is an integer number (4120551).
Almost surely, 270738960 is an apocalyptic number.
It is an amenable number.
70738960 is an abundant number, since it is smaller than the sum of its proper divisors (94083080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70738960 is a wasteful number, since it uses less digits than its factorization.
70738960 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1915 (or 1909 counting only the distinct ones).
The product of its (nonzero) digits is 63504, while the sum is 40.
The square root of 70738960 is about 8410.6456351460. The cubic root of 70738960 is about 413.5736779999.
The spelling of 70738960 in words is "seventy million, seven hundred thirty-eight thousand, nine hundred sixty".
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