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464704249 = 215572
BaseRepresentation
bin11011101100101…
…101001011111001
31012101102102101111
4123230231023321
51422431013444
6114040120321
714341630612
oct3354551371
91171372344
10464704249
1121934a1a9
1210b7660a1
1375377839
1445a08c09
152abe5234
hex1bb2d2f9

464704249 has 3 divisors (see below), whose sum is σ = 464725807. Its totient is φ = 464682692.

The previous prime is 464704211. The next prime is 464704271. The reversal of 464704249 is 942407464.

The square root of 464704249 is 21557.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 45765225 + 418939024 = 6765^2 + 20468^2 .

It is not a de Polignac number, because 464704249 - 211 = 464702201 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (464764249) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 10779 + ... + 32335.

Almost surely, 2464704249 is an apocalyptic number.

464704249 is the 21557-th square number.

464704249 is the 10779-th centered octagonal number.

It is an amenable number.

464704249 is a deficient number, since it is larger than the sum of its proper divisors (21558).

464704249 is an frugal number, since it uses more digits than its factorization.

464704249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43114 (or 21557 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The cubic root of 464704249 is about 774.5668055652.

The spelling of 464704249 in words is "four hundred sixty-four million, seven hundred four thousand, two hundred forty-nine".

Divisors: 1 21557 464704249