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8280667469 = 16674967407
BaseRepresentation
bin1111011011001000…
…01111010101001101
3210101002112111021202
413231210033111031
5113424322324334
63445403235245
7412126340444
oct75544172515
923332474252
108280667469
11356a248038
121731218b25
13a1c732549
14587a87d5b
15336e8b17e
hex1ed90f54d

8280667469 has 4 divisors (see below), whose sum is σ = 8285636544. Its totient is φ = 8275698396.

The previous prime is 8280667429. The next prime is 8280667471. The reversal of 8280667469 is 9647660828.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8280667469 is a prime.

It is a super-2 number, since 2×82806674692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8280667429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2482037 + ... + 2485370.

It is an arithmetic number, because the mean of its divisors is an integer number (2071409136).

Almost surely, 28280667469 is an apocalyptic number.

It is an amenable number.

8280667469 is a deficient number, since it is larger than the sum of its proper divisors (4969075).

8280667469 is a wasteful number, since it uses less digits than its factorization.

8280667469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4969074.

The product of its (nonzero) digits is 6967296, while the sum is 56.

The square root of 8280667469 is about 90998.1728882509. The cubic root of 8280667469 is about 2023.1206437115.

The spelling of 8280667469 in words is "eight billion, two hundred eighty million, six hundred sixty-seven thousand, four hundred sixty-nine".

Divisors: 1 1667 4967407 8280667469