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130102421 = 235939539
BaseRepresentation
bin1111100000100…
…11010010010101
3100001210212222012
413300103102111
5231301234141
620524314005
73136565231
oct760232225
9301725865
10130102421
1167491969
12376a2905
1320c532a7
14133c95c1
15b64dceb
hex7c13495

130102421 has 8 divisors (see below), whose sum is σ = 136002240. Its totient is φ = 124222912.

The previous prime is 130102403. The next prime is 130102429. The reversal of 130102421 is 124201031.

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 130102421 - 214 = 130086037 is a prime.

It is a super-2 number, since 2×1301024212 = 33853279900122482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 130102396 and 130102405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130102429) 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, 8870 + ... + 18408.

It is an arithmetic number, because the mean of its divisors is an integer number (17000280).

Almost surely, 2130102421 is an apocalyptic number.

It is an amenable number.

130102421 is a deficient number, since it is larger than the sum of its proper divisors (5899819).

130102421 is an equidigital number, since it uses as much as digits as its factorization.

130102421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10155.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 130102421 is about 11406.2448246564. The cubic root of 130102421 is about 506.7127039097.

Adding to 130102421 its reverse (124201031), we get a palindrome (254303452).

The spelling of 130102421 in words is "one hundred thirty million, one hundred two thousand, four hundred twenty-one".

Divisors: 1 23 593 9539 13639 219397 5656627 130102421