Base | Representation |
---|---|
bin | 100000010110110101… |
… | …0000110010001100001 |
3 | 20122100120012111000000 |
4 | 1000231222012101201 |
5 | 2114301241042301 |
6 | 51530551050213 |
7 | 5006625616224 |
oct | 1005552062141 |
9 | 218316174000 |
10 | 69485487201 |
11 | 27517822a89 |
12 | 11572670969 |
13 | 6724980900 |
14 | 35125635bb |
15 | 1c1a37c786 |
hex | 102da86461 |
69485487201 has 63 divisors (see below), whose sum is σ = 112961330307. Its totient is φ = 42703362000.
The previous prime is 69485487107. The next prime is 69485487223. The reversal of 69485487201 is 10278458496.
It is a happy number.
The square root of 69485487201 is 263601.
It is a perfect power (a square), and thus also a powerful number.
69485487201 is a `hidden beast` number, since 6 + 94 + 8 + 548 + 7 + 2 + 0 + 1 = 666.
It can be written as a sum of positive squares in only one way, i.e., 10278918225 + 59206568976 = 101385^2 + 243324^2 .
It is not a de Polignac number, because 69485487201 - 27 = 69485487073 is a prime.
It is not an unprimeable number, because it can be changed into a prime (69485486201) by changing a digit.
It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 92523576 + ... + 92524326.
It is an arithmetic number, because the mean of its divisors is an integer number (1793036989).
Almost surely, 269485487201 is an apocalyptic number.
69485487201 is the 263601-st square number.
69485487201 is the 131801-st centered octagonal number.
It is an amenable number.
69485487201 is a deficient number, since it is larger than the sum of its proper divisors (43475843106).
69485487201 is an frugal number, since it uses more digits than its factorization.
69485487201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1546 (or 767 counting only the distinct ones).
The product of its (nonzero) digits is 3870720, while the sum is 54.
The spelling of 69485487201 in words is "sixty-nine billion, four hundred eighty-five million, four hundred eighty-seven thousand, two hundred one".
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