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457220234 = 2892568653
BaseRepresentation
bin11011010000001…
…010000010001010
31011212100012020202
4123100022002022
51414022021414
6113211452202
714221210412
oct3320120212
91155305222
10457220234
112150a8369
12109157062
1373957223
1444a1b642
152a2179de
hex1b40a08a

457220234 has 8 divisors (see below), whose sum is σ = 693536580. Its totient is φ = 226041376.

The previous prime is 457220221. The next prime is 457220251. The reversal of 457220234 is 432022754.

It can be written as a sum of positive squares in 2 ways, for example, as 360886009 + 96334225 = 18997^2 + 9815^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 457220197 and 457220206.

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, 1284149 + ... + 1284504.

Almost surely, 2457220234 is an apocalyptic number.

457220234 is a deficient number, since it is larger than the sum of its proper divisors (236316346).

457220234 is a wasteful number, since it uses less digits than its factorization.

457220234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568744.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 457220234 is about 21382.7087619880. The cubic root of 457220234 is about 770.3861749871.

Adding to 457220234 its reverse (432022754), we get a palindrome (889242988).

The spelling of 457220234 in words is "four hundred fifty-seven million, two hundred twenty thousand, two hundred thirty-four".

Divisors: 1 2 89 178 2568653 5137306 228610117 457220234