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130405430 = 2513040543
BaseRepresentation
bin1111100010111…
…01010000110110
3100002101021121202
413301131100312
5231340433210
620535012502
73142266521
oct761352066
9302337552
10130405430
1167679591
123780a132
132102b19c
1413467bb8
15b6ad9a5
hex7c5d436

130405430 has 8 divisors (see below), whose sum is σ = 234729792. Its totient is φ = 52162168.

The previous prime is 130405421. The next prime is 130405433. The reversal of 130405430 is 34504031.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130405433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6520262 + ... + 6520281.

It is an arithmetic number, because the mean of its divisors is an integer number (29341224).

Almost surely, 2130405430 is an apocalyptic number.

130405430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130405430 is a deficient number, since it is larger than the sum of its proper divisors (104324362).

130405430 is a wasteful number, since it uses less digits than its factorization.

130405430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13040550.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 130405430 is about 11419.5196921762. The cubic root of 130405430 is about 507.1057774724.

Adding to 130405430 its reverse (34504031), we get a palindrome (164909461).

The spelling of 130405430 in words is "one hundred thirty million, four hundred five thousand, four hundred thirty".

Divisors: 1 2 5 10 13040543 26081086 65202715 130405430