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130402443 = 3239918119
BaseRepresentation
bin1111100010111…
…00100010001011
3100002101010112010
413301130202023
5231340334233
620534551003
73142255023
oct761344213
9302333463
10130402443
1167677316
1237808463
1321029a12
1413466a83
15b6acb63
hex7c5c88b

130402443 has 8 divisors (see below), whose sum is σ = 173952000. Its totient is φ = 86893928.

The previous prime is 130402421. The next prime is 130402469. The reversal of 130402443 is 344204031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130402443 - 216 = 130336907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130402483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1863 + ... + 16256.

It is an arithmetic number, because the mean of its divisors is an integer number (21744000).

Almost surely, 2130402443 is an apocalyptic number.

130402443 is a deficient number, since it is larger than the sum of its proper divisors (43549557).

130402443 is a wasteful number, since it uses less digits than its factorization.

130402443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20521.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 130402443 is about 11419.3889065922. The cubic root of 130402443 is about 507.1019056078.

Adding to 130402443 its reverse (344204031), we get a palindrome (474606474).

The spelling of 130402443 in words is "one hundred thirty million, four hundred two thousand, four hundred forty-three".

Divisors: 1 3 2399 7197 18119 54357 43467481 130402443