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1330212452 = 2223103229613
BaseRepresentation
bin100111101001001…
…0110111001100100
310102201000210102212
41033102112321210
510211013244302
6335555022552
744651422262
oct11722267144
93381023385
101330212452
11622963338
1231159aa58
1318278587a
14c8947432
157bbac052
hex4f496e64

1330212452 has 48 divisors (see below), whose sum is σ = 2467395840. Its totient is φ = 626237568.

The previous prime is 1330212451. The next prime is 1330212463. The reversal of 1330212452 is 2542120331.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (1330212451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2169698 + ... + 2170310.

It is an arithmetic number, because the mean of its divisors is an integer number (51404080).

Almost surely, 21330212452 is an apocalyptic number.

It is an amenable number.

1330212452 is a deficient number, since it is larger than the sum of its proper divisors (1137183388).

1330212452 is a wasteful number, since it uses less digits than its factorization.

1330212452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1330212452 is about 36472.0777033610. The cubic root of 1330212452 is about 1099.7830018235.

Adding to 1330212452 its reverse (2542120331), we get a palindrome (3872332783).

The spelling of 1330212452 in words is "one billion, three hundred thirty million, two hundred twelve thousand, four hundred fifty-two".

Divisors: 1 2 4 23 46 92 103 206 229 412 458 613 916 1226 2369 2452 4738 5267 9476 10534 14099 21068 23587 28198 47174 56396 63139 94348 126278 140377 252556 280754 542501 561508 1085002 1452197 2170004 2904394 3228671 5808788 6457342 12914684 14458831 28917662 57835324 332553113 665106226 1330212452