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130005453 = 323281919
BaseRepresentation
bin1111011111110…
…11100111001101
3100001121221221210
413233323213031
5231240133303
620522245033
73136012434
oct757734715
9301557853
10130005453
1167426026
1237656779
1320c1b106
14133a211b
15b630203
hex7bfb9cd

130005453 has 12 divisors (see below), whose sum is σ = 181207040. Its totient is φ = 82901016.

The previous prime is 130005451. The next prime is 130005461. The reversal of 130005453 is 354500031.

It is not a de Polignac number, because 130005453 - 21 = 130005451 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 (130005451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39373 + ... + 42546.

Almost surely, 2130005453 is an apocalyptic number.

It is an amenable number.

130005453 is a deficient number, since it is larger than the sum of its proper divisors (51201587).

130005453 is an equidigital number, since it uses as much as digits as its factorization.

130005453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81968 (or 81945 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 130005453 is about 11401.9933783528. The cubic root of 130005453 is about 506.5867848344.

Adding to 130005453 its reverse (354500031), we get a palindrome (484505484).

The spelling of 130005453 in words is "one hundred thirty million, five thousand, four hundred fifty-three".

Divisors: 1 3 23 69 529 1587 81919 245757 1884137 5652411 43335151 130005453