Base | Representation |
---|---|
bin | 100000100110100001… |
… | …1011001111101101001 |
3 | 20200201021100000220101 |
4 | 1001031003121331221 |
5 | 2121341111341040 |
6 | 52055124425401 |
7 | 5025653003215 |
oct | 1011503317551 |
9 | 220637300811 |
10 | 70012215145 |
11 | 27768085534 |
12 | 1169ab48261 |
13 | 67a9b33552 |
14 | 35624b5945 |
15 | 1c4b72509a |
hex | 104d0d9f69 |
70012215145 has 16 divisors (see below), whose sum is σ = 85284109440. Its totient is φ = 55163775744.
The previous prime is 70012215121. The next prime is 70012215157. The reversal of 70012215145 is 54151221007.
It is a cyclic number.
It is not a de Polignac number, because 70012215145 - 215 = 70012182377 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2219796 + ... + 2251114.
It is an arithmetic number, because the mean of its divisors is an integer number (5330256840).
Almost surely, 270012215145 is an apocalyptic number.
It is an amenable number.
70012215145 is a deficient number, since it is larger than the sum of its proper divisors (15271894295).
70012215145 is a wasteful number, since it uses less digits than its factorization.
70012215145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38064.
The product of its (nonzero) digits is 2800, while the sum is 28.
The spelling of 70012215145 in words is "seventy billion, twelve million, two hundred fifteen thousand, one hundred forty-five".
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