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75469 = 163463
BaseRepresentation
bin10010011011001101
310211112011
4102123031
54403334
61341221
7433012
oct223315
9124464
1075469
1151779
1237811
1328474
141d709
1517564
hex126cd

75469 has 4 divisors (see below), whose sum is σ = 76096. Its totient is φ = 74844.

The previous prime is 75437. The next prime is 75479. The reversal of 75469 is 96457.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 75469 - 25 = 75437 is a prime.

It is a super-2 number, since 2×754692 = 11391139922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 75469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75479) 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, 69 + ... + 394.

It is an arithmetic number, because the mean of its divisors is an integer number (19024).

275469 is an apocalyptic number.

It is an amenable number.

75469 is a deficient number, since it is larger than the sum of its proper divisors (627).

75469 is a wasteful number, since it uses less digits than its factorization.

75469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626.

The product of its digits is 7560, while the sum is 31.

The square root of 75469 is about 274.7162172133. The cubic root of 75469 is about 42.2593550938.

It can be divided in two parts, 7 and 5469, that multiplied together give a palindrome (38283).

The spelling of 75469 in words is "seventy-five thousand, four hundred sixty-nine".

Divisors: 1 163 463 75469