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426381213 = 3631225241
BaseRepresentation
bin11001011010100…
…000111110011101
31002201022102001210
4121122200332131
51333123144323
6110150455033
713365115626
oct3132407635
91081272053
10426381213
111a9754575
12ba964479
136a44a39b
14408b0a4d
1527675293
hex196a0f9d

426381213 has 8 divisors (see below), whose sum is σ = 569411776. Its totient is φ = 283802400.

The previous prime is 426381211. The next prime is 426381269. The reversal of 426381213 is 312183624.

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

It is not a de Polignac number, because 426381213 - 21 = 426381211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426381211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110728 + ... + 114513.

It is an arithmetic number, because the mean of its divisors is an integer number (71176472).

Almost surely, 2426381213 is an apocalyptic number.

It is an amenable number.

426381213 is a deficient number, since it is larger than the sum of its proper divisors (143030563).

426381213 is a wasteful number, since it uses less digits than its factorization.

426381213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225875.

The product of its digits is 6912, while the sum is 30.

The square root of 426381213 is about 20649.0002905710. Note that the first 3 decimals coincide. The cubic root of 426381213 is about 752.6608967843.

The spelling of 426381213 in words is "four hundred twenty-six million, three hundred eighty-one thousand, two hundred thirteen".

Divisors: 1 3 631 1893 225241 675723 142127071 426381213