Base | Representation |
---|---|
bin | 100000100110100010… |
… | …0001100001101111001 |
3 | 20200201021201111021002 |
4 | 1001031010030031321 |
5 | 2121341134432420 |
6 | 52055133054345 |
7 | 5025654521303 |
oct | 1011504141571 |
9 | 220637644232 |
10 | 70012420985 |
11 | 27768206151 |
12 | 1169b0273b5 |
13 | 67a9ba6150 |
14 | 356252a973 |
15 | 1c4b766075 |
hex | 104d10c379 |
70012420985 has 16 divisors (see below), whose sum is σ = 95799802896. Its totient is φ = 48660215808.
The previous prime is 70012420957. The next prime is 70012420999. The reversal of 70012420985 is 58902421007.
It can be written as a sum of positive squares in 8 ways, for example, as 3390616441 + 66621804544 = 58229^2 + 258112^2 .
It is a cyclic number.
It is not a de Polignac number, because 70012420985 - 28 = 70012420729 is a prime.
It is a Duffinian number.
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, 31678724 + ... + 31680933.
It is an arithmetic number, because the mean of its divisors is an integer number (5987487681).
Almost surely, 270012420985 is an apocalyptic number.
It is an amenable number.
70012420985 is a deficient number, since it is larger than the sum of its proper divisors (25787381911).
70012420985 is a wasteful number, since it uses less digits than its factorization.
70012420985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 63359692.
The product of its (nonzero) digits is 40320, while the sum is 38.
The spelling of 70012420985 in words is "seventy billion, twelve million, four hundred twenty thousand, nine hundred eighty-five".
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