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130406306 = 2331319681
BaseRepresentation
bin1111100010111…
…01011110100010
3100002101022211012
413301131132202
5231341000211
620535020522
73142302212
oct761353642
9302338735
10130406306
116767a208
123780a742
132102b6c4
1413468242
15b6add8b
hex7c5d7a2

130406306 has 8 divisors (see below), whose sum is σ = 195678444. Its totient is φ = 65180160.

The previous prime is 130406299. The next prime is 130406323. The reversal of 130406306 is 603604031.

It can be written as a sum of positive squares in 2 ways, for example, as 91030681 + 39375625 = 9541^2 + 6275^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3215 + ... + 16466.

Almost surely, 2130406306 is an apocalyptic number.

130406306 is a deficient number, since it is larger than the sum of its proper divisors (65272138).

130406306 is a wasteful number, since it uses less digits than its factorization.

130406306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22996.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 130406306 is about 11419.5580474903. The cubic root of 130406306 is about 507.1069129662.

The spelling of 130406306 in words is "one hundred thirty million, four hundred six thousand, three hundred six".

Divisors: 1 2 3313 6626 19681 39362 65203153 130406306