Base | Representation |
---|---|
bin | 1000010101100… |
… | …01011111000101 |
3 | 11212120222001000 |
4 | 10022301133011 |
5 | 120400323442 |
6 | 10534523513 |
7 | 1506264201 |
oct | 412613705 |
9 | 155528030 |
10 | 69932997 |
11 | 36525772 |
12 | 1b506599 |
13 | 11647194 |
14 | 9405b01 |
15 | 6215d4c |
hex | 42b17c5 |
69932997 has 16 divisors (see below), whose sum is σ = 106406080. Its totient is φ = 45361296.
The previous prime is 69932987. The next prime is 69933011. The reversal of 69932997 is 79923996.
It is a de Polignac number, because none of the positive numbers 2k-69932997 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69932927) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34003 + ... + 36000.
It is an arithmetic number, because the mean of its divisors is an integer number (6650380).
Almost surely, 269932997 is an apocalyptic number.
It is an amenable number.
69932997 is a deficient number, since it is larger than the sum of its proper divisors (36473083).
69932997 is a wasteful number, since it uses less digits than its factorization.
69932997 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 70049 (or 70043 counting only the distinct ones).
The product of its digits is 1653372, while the sum is 54.
The square root of 69932997 is about 8362.5951115667. The cubic root of 69932997 is about 411.9969934899.
Adding to 69932997 its sum of digits (54), we get a triangular number (69933051 = T11826).
Subtracting 69932997 from its reverse (79923996), we obtain a palindrome (9990999).
The spelling of 69932997 in words is "sixty-nine million, nine hundred thirty-two thousand, nine hundred ninety-seven".
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