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412130221 = 715804651
BaseRepresentation
bin11000100100001…
…001101110101101
31001201111101101021
4120210021232231
51321001131341
6104521214141
713133022556
oct3044115655
91051441337
10412130221
111a1700598
12b6031351
13674ca949
143ca4132d
15262ac9d1
hex18909bad

412130221 has 4 divisors (see below), whose sum is σ = 417934944. Its totient is φ = 406325500.

The previous prime is 412130219. The next prime is 412130227. The reversal of 412130221 is 122031214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 412130221 - 21 = 412130219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 412130195 and 412130204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412130227) 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, 2902255 + ... + 2902396.

It is an arithmetic number, because the mean of its divisors is an integer number (104483736).

Almost surely, 2412130221 is an apocalyptic number.

It is an amenable number.

412130221 is a deficient number, since it is larger than the sum of its proper divisors (5804723).

412130221 is an equidigital number, since it uses as much as digits as its factorization.

412130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5804722.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 412130221 is about 20300.9906408530. The cubic root of 412130221 is about 744.1802740063.

Adding to 412130221 its reverse (122031214), we get a palindrome (534161435).

The spelling of 412130221 in words is "four hundred twelve million, one hundred thirty thousand, two hundred twenty-one".

Divisors: 1 71 5804651 412130221