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130421402 = 2314574603
BaseRepresentation
bin1111100011000…
…01001010011010
3100002102002112022
413301201022122
5231341441102
620535214442
73142364216
oct761411232
9302362468
10130421402
116768a591
1237817422
1321035537
141346d946
15b6b35a2
hex7c6129a

130421402 has 16 divisors (see below), whose sum is σ = 202428672. Its totient is φ = 62955360.

The previous prime is 130421387. The next prime is 130421407. The reversal of 130421402 is 204124031.

It is not an unprimeable number, because it can be changed into a prime (130421407) 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 7 ways as a sum of consecutive naturals, for example, 26033 + ... + 30635.

It is an arithmetic number, because the mean of its divisors is an integer number (12651792).

Almost surely, 2130421402 is an apocalyptic number.

130421402 is a deficient number, since it is larger than the sum of its proper divisors (72007270).

130421402 is a wasteful number, since it uses less digits than its factorization.

130421402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5093.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 130421402 is about 11420.2189996515. The cubic root of 130421402 is about 507.1264799918.

Adding to 130421402 its reverse (204124031), we get a palindrome (334545433).

The spelling of 130421402 in words is "one hundred thirty million, four hundred twenty-one thousand, four hundred two".

Divisors: 1 2 31 62 457 914 4603 9206 14167 28334 142693 285386 2103571 4207142 65210701 130421402