Base | Representation |
---|---|
bin | 100000101100100110… |
… | …0101101000011101101 |
3 | 20201020110202022200220 |
4 | 1001121030231003231 |
5 | 2122300242313440 |
6 | 52131244041553 |
7 | 5034005655516 |
oct | 1013114550355 |
9 | 221213668626 |
10 | 70215979245 |
11 | 278620a9515 |
12 | 117372332b9 |
13 | 6810107c19 |
14 | 3581597a0d |
15 | 1c5e5748d0 |
hex | 105932d0ed |
70215979245 has 16 divisors (see below), whose sum is σ = 118258491840. Its totient is φ = 35477547264.
The previous prime is 70215979193. The next prime is 70215979261. The reversal of 70215979245 is 54297951207.
It is not a de Polignac number, because 70215979245 - 26 = 70215979181 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123185644 + ... + 123186213.
It is an arithmetic number, because the mean of its divisors is an integer number (7391155740).
Almost surely, 270215979245 is an apocalyptic number.
It is an amenable number.
70215979245 is a deficient number, since it is larger than the sum of its proper divisors (48042512595).
70215979245 is a wasteful number, since it uses less digits than its factorization.
70215979245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 246371884.
The product of its (nonzero) digits is 1587600, while the sum is 51.
The spelling of 70215979245 in words is "seventy billion, two hundred fifteen million, nine hundred seventy-nine thousand, two hundred forty-five".
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