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130103431 = 1719402797
BaseRepresentation
bin1111100000100…
…11100010000111
3100001210221100121
413300103202013
5231301302211
620524322411
73136601203
oct760234207
9301727317
10130103431
11674926a7
12376a3407
1320c538a3
14133c9b03
15b64e271
hex7c13887

130103431 has 8 divisors (see below), whose sum is σ = 145007280. Its totient is φ = 116005248.

The previous prime is 130103417. The next prime is 130103443. The reversal of 130103431 is 134301031.

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 130103431 - 215 = 130070663 is a prime.

It is a super-2 number, since 2×1301034312 = 33853805515943522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130103401) 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, 201076 + ... + 201721.

It is an arithmetic number, because the mean of its divisors is an integer number (18125910).

Almost surely, 2130103431 is an apocalyptic number.

130103431 is a deficient number, since it is larger than the sum of its proper divisors (14903849).

130103431 is a wasteful number, since it uses less digits than its factorization.

130103431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402833.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 130103431 is about 11406.2890985631. The cubic root of 130103431 is about 506.7140151292.

Adding to 130103431 its reverse (134301031), we get a palindrome (264404462).

The spelling of 130103431 in words is "one hundred thirty million, one hundred three thousand, four hundred thirty-one".

Divisors: 1 17 19 323 402797 6847549 7653143 130103431