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130009469 = 465727917
BaseRepresentation
bin1111011111111…
…00100101111101
3100001122011110112
413233330211331
5231240300334
620522315405
73136030232
oct757744575
9301564415
10130009469
1167429047
1237658b65
1320c1cba5
14133a3789
15b6314ce
hex7bfc97d

130009469 has 4 divisors (see below), whose sum is σ = 130042044. Its totient is φ = 129976896.

The previous prime is 130009459. The next prime is 130009487. The reversal of 130009469 is 964900031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73188025 + 56821444 = 8555^2 + 7538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130009469 is a prime.

It is a super-2 number, since 2×1300094692 = 33804924059323922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130009459) 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, 9302 + ... + 18615.

It is an arithmetic number, because the mean of its divisors is an integer number (32510511).

Almost surely, 2130009469 is an apocalyptic number.

It is an amenable number.

130009469 is a deficient number, since it is larger than the sum of its proper divisors (32575).

130009469 is an equidigital number, since it uses as much as digits as its factorization.

130009469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32574.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 130009469 is about 11402.1694865495. The cubic root of 130009469 is about 506.5920011069.

The spelling of 130009469 in words is "one hundred thirty million, nine thousand, four hundred sixty-nine".

Divisors: 1 4657 27917 130009469