Base | Representation |
---|---|
bin | 1000010100010… |
… | …01110010101100 |
3 | 11212021201000100 |
4 | 10022021302230 |
5 | 120330123122 |
6 | 10531231100 |
7 | 1505016165 |
oct | 412116254 |
9 | 155251010 |
10 | 69770412 |
11 | 364245a8 |
12 | 1b448490 |
13 | 115bb18a |
14 | 93a276c |
15 | 61d2aac |
hex | 4289cac |
69770412 has 18 divisors (see below), whose sum is σ = 176364188. Its totient is φ = 23256792.
The previous prime is 69770411. The next prime is 69770417. The reversal of 69770412 is 21407796.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (18).
It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1938067 = 69770412 / (6 + 9 + 7 + 7 + 0 + 4 + 1 + 2).
It is not an unprimeable number, because it can be changed into a prime (69770411) 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 5 ways as a sum of consecutive naturals, for example, 968998 + ... + 969069.
Almost surely, 269770412 is an apocalyptic number.
It is an amenable number.
69770412 is an abundant number, since it is smaller than the sum of its proper divisors (106593776).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69770412 is a wasteful number, since it uses less digits than its factorization.
69770412 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1938077 (or 1938072 counting only the distinct ones).
The product of its (nonzero) digits is 21168, while the sum is 36.
The square root of 69770412 is about 8352.8684893275. The cubic root of 69770412 is about 411.6774661743.
The spelling of 69770412 in words is "sixty-nine million, seven hundred seventy thousand, four hundred twelve".
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