Base | Representation |
---|---|
bin | 100001000100010101… |
… | …0010111110100110001 |
3 | 20210021222010212212020 |
4 | 1002020222113310301 |
5 | 2130413121120440 |
6 | 52342251422053 |
7 | 5062515320022 |
oct | 1021052276461 |
9 | 223258125766 |
10 | 71012285745 |
11 | 28130647365 |
12 | 11919a54929 |
13 | 69090968bb |
14 | 3619240c49 |
15 | 1ca941c3d0 |
hex | 1088a97d31 |
71012285745 has 32 divisors (see below), whose sum is σ = 117338640384. Its totient is φ = 36634680000.
The previous prime is 71012285693. The next prime is 71012285749. The reversal of 71012285745 is 54758221017.
It is not a de Polignac number, because 71012285745 - 230 = 69938543921 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 71012285697 and 71012285706.
It is not an unprimeable number, because it can be changed into a prime (71012285749) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1012794 + ... + 1080636.
It is an arithmetic number, because the mean of its divisors is an integer number (3666832512).
Almost surely, 271012285745 is an apocalyptic number.
It is an amenable number.
71012285745 is a deficient number, since it is larger than the sum of its proper divisors (46326354639).
71012285745 is a wasteful number, since it uses less digits than its factorization.
71012285745 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 70133.
The product of its (nonzero) digits is 156800, while the sum is 42.
The spelling of 71012285745 in words is "seventy-one billion, twelve million, two hundred eighty-five thousand, seven hundred forty-five".
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