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69005429 = 131526759
BaseRepresentation
bin1000001110011…
…11000001110101
311210211211122122
410013033001311
5120131133204
610503005325
71465352003
oct407170165
9153754578
1069005429
1135a51889
121b139845
13113b0c1c
149243a73
1560d10be
hex41cf075

69005429 has 4 divisors (see below), whose sum is σ = 69532320. Its totient is φ = 68478540.

The previous prime is 69005423. The next prime is 69005437. The reversal of 69005429 is 92450096.

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 not a de Polignac number, because 69005429 - 212 = 69001333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69005423) 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 3 ways as a sum of consecutive naturals, for example, 263249 + ... + 263510.

It is an arithmetic number, because the mean of its divisors is an integer number (17383080).

Almost surely, 269005429 is an apocalyptic number.

It is an amenable number.

69005429 is a deficient number, since it is larger than the sum of its proper divisors (526891).

69005429 is a wasteful number, since it uses less digits than its factorization.

69005429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526890.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 69005429 is about 8306.9506438885. The cubic root of 69005429 is about 410.1673498869.

The spelling of 69005429 in words is "sixty-nine million, five thousand, four hundred twenty-nine".

Divisors: 1 131 526759 69005429