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1214452801 = 348492
BaseRepresentation
bin100100001100011…
…0001010001000001
310010122012121001101
41020120301101001
54441344442201
6320301534401
742044451502
oct11030612101
93118177041
101214452801
11573588401
1229a874401
131647b4a33
14b7412ba9
1571942d01
hex48631441

1214452801 has 3 divisors (see below), whose sum is σ = 1214487651. Its totient is φ = 1214417952.

The previous prime is 1214452777. The next prime is 1214452861. The reversal of 1214452801 is 1082544121.

The square root of 1214452801 is 34849.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1082544121 = 3137934499.

It can be written as a sum of positive squares in only one way, i.e., 36590401 + 1177862400 = 6049^2 + 34320^2 .

It is not a de Polignac number, because 1214452801 - 25 = 1214452769 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

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 1214452801.

It is not an unprimeable number, because it can be changed into a prime (1214452861) 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, 17425 + ... + 52273.

It is an arithmetic number, because the mean of its divisors is an integer number (404829217).

Almost surely, 21214452801 is an apocalyptic number.

1214452801 is the 34849-th square number.

1214452801 is the 17425-th centered octagonal number.

It is an amenable number.

1214452801 is a deficient number, since it is larger than the sum of its proper divisors (34850).

1214452801 is an frugal number, since it uses more digits than its factorization.

1214452801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69698 (or 34849 counting only the distinct ones).

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

The cubic root of 1214452801 is about 1066.9077756498.

Adding to 1214452801 its reverse (1082544121), we get a palindrome (2296996922).

The spelling of 1214452801 in words is "one billion, two hundred fourteen million, four hundred fifty-two thousand, eight hundred one".

Divisors: 1 34849 1214452801