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458002801 = 214012
BaseRepresentation
bin11011010011001…
…001000101110001
31011220210221201201
4123103021011301
51414222042201
6113240331201
714230650064
oct3323110561
91156727651
10458002801
11215592313
12109473b01
1373b6c499
1444b828db
152a31e801
hex1b4c9171

458002801 has 3 divisors (see below), whose sum is σ = 458024203. Its totient is φ = 457981400.

The previous prime is 458002799. The next prime is 458002807. The reversal of 458002801 is 108200854.

The square root of 458002801 is 21401.

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., 97002801 + 361000000 = 9849^2 + 19000^2 .

It is not a de Polignac number, because 458002801 - 21 = 458002799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 458002801.

It is not an unprimeable number, because it can be changed into a prime (458002807) 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, 10701 + ... + 32101.

Almost surely, 2458002801 is an apocalyptic number.

458002801 is the 21401-st square number.

458002801 is the 10701-st centered octagonal number.

It is an amenable number.

458002801 is a deficient number, since it is larger than the sum of its proper divisors (21402).

458002801 is an frugal number, since it uses more digits than its factorization.

458002801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42802 (or 21401 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The cubic root of 458002801 is about 770.8254491939.

The spelling of 458002801 in words is "four hundred fifty-eight million, two thousand, eight hundred one".

Divisors: 1 21401 458002801