Base | Representation |
---|---|
bin | 1110101010111… |
… | …01110100010101 |
3 | 22120120111002211 |
4 | 13111131310111 |
5 | 223001131134 |
6 | 20113433421 |
7 | 3023025604 |
oct | 725356425 |
9 | 276514084 |
10 | 123067669 |
11 | 6351761a |
12 | 3526b871 |
13 | 1c65c30a |
14 | 124b7a3b |
15 | ac0e764 |
hex | 755dd15 |
123067669 has 4 divisors (see below), whose sum is σ = 124550496. Its totient is φ = 121584844.
The previous prime is 123067663. The next prime is 123067697. The reversal of 123067669 is 966760321.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 966760321 = 27743 ⋅34847.
It is a cyclic number.
It is not a de Polignac number, because 123067669 - 213 = 123059477 is a prime.
It is a super-2 number, since 2×1230676692 = 30291302306187122, which contains 22 as substring.
It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123067663) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741289 + ... + 741454.
It is an arithmetic number, because the mean of its divisors is an integer number (31137624).
Almost surely, 2123067669 is an apocalyptic number.
It is an amenable number.
123067669 is a deficient number, since it is larger than the sum of its proper divisors (1482827).
123067669 is an equidigital number, since it uses as much as digits as its factorization.
123067669 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1482826.
The product of its (nonzero) digits is 81648, while the sum is 40.
The square root of 123067669 is about 11093.5868410537. The cubic root of 123067669 is about 497.4101673613.
The spelling of 123067669 in words is "one hundred twenty-three million, sixty-seven thousand, six hundred sixty-nine".
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