Base | Representation |
---|---|
bin | 1000010010001… |
… | …11000001110101 |
3 | 11211202210220002 |
4 | 10021013001311 |
5 | 120242400244 |
6 | 10521321045 |
7 | 1502500004 |
oct | 411070165 |
9 | 154683802 |
10 | 69496949 |
11 | 362580a5 |
12 | 1b336185 |
13 | 11523872 |
14 | 9330c3b |
15 | 617ba4e |
hex | 4247075 |
69496949 has 8 divisors (see below), whose sum is σ = 70973400. Its totient is φ = 68034816.
The previous prime is 69496943. The next prime is 69496951. The reversal of 69496949 is 94969496.
It can be written as a sum of positive squares in 4 ways, for example, as 27636049 + 41860900 = 5257^2 + 6470^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-69496949 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 69496894 and 69496903.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69496943) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6527 + ... + 13475.
It is an arithmetic number, because the mean of its divisors is an integer number (8871675).
Almost surely, 269496949 is an apocalyptic number.
It is an amenable number.
69496949 is a deficient number, since it is larger than the sum of its proper divisors (1476451).
69496949 is a wasteful number, since it uses less digits than its factorization.
69496949 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7159.
The product of its digits is 3779136, while the sum is 56.
The square root of 69496949 is about 8336.4830114383. The cubic root of 69496949 is about 411.1389095209.
The spelling of 69496949 in words is "sixty-nine million, four hundred ninety-six thousand, nine hundred forty-nine".
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