Search a number
-
+
1353211205 = 51811495261
BaseRepresentation
bin101000010101000…
…0101110101000101
310111022022020210112
41100222011311011
510232410224310
6342140002405
745351051113
oct12052056505
93438266715
101353211205
11634941675
12319230405
13187478bb8
14cba12ab3
157dc01705
hex50a85d45

1353211205 has 8 divisors (see below), whose sum is σ = 1632826104. Its totient is φ = 1076587200.

The previous prime is 1353211193. The next prime is 1353211259. The reversal of 1353211205 is 5021123531.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 93103201 + 1260108004 = 9649^2 + 35498^2 .

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

It is not a de Polignac number, because 1353211205 - 28 = 1353210949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746726 + ... + 748535.

It is an arithmetic number, because the mean of its divisors is an integer number (204103263).

Almost surely, 21353211205 is an apocalyptic number.

It is an amenable number.

1353211205 is a deficient number, since it is larger than the sum of its proper divisors (279614899).

1353211205 is a wasteful number, since it uses less digits than its factorization.

1353211205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495447.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1353211205 is about 36786.0191513026. The cubic root of 1353211205 is about 1106.0850653485.

Adding to 1353211205 its reverse (5021123531), we get a palindrome (6374334736).

The spelling of 1353211205 in words is "one billion, three hundred fifty-three million, two hundred eleven thousand, two hundred five".

Divisors: 1 5 181 905 1495261 7476305 270642241 1353211205