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13030452 = 22322831279
BaseRepresentation
bin110001101101…
…010000110100
3220112000102100
4301231100310
511313433302
61143142100
7215520441
oct61552064
926460370
1013030452
11739aa76
124444930
132913036
141a329c8
151225d1c
hexc6d434

13030452 has 36 divisors (see below), whose sum is σ = 33080320. Its totient is φ = 4324752.

The previous prime is 13030403. The next prime is 13030453. The reversal of 13030452 is 25403031.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13030453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9549 + ... + 10827.

Almost surely, 213030452 is an apocalyptic number.

13030452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13030452 is an abundant number, since it is smaller than the sum of its proper divisors (20049868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13030452 is a wasteful number, since it uses less digits than its factorization.

13030452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572 (or 1567 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 13030452 is about 3609.7717379358. The cubic root of 13030452 is about 235.3169226377.

Adding to 13030452 its reverse (25403031), we get a palindrome (38433483).

The spelling of 13030452 in words is "thirteen million, thirty thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 283 566 849 1132 1279 1698 2547 2558 3396 3837 5094 5116 7674 10188 11511 15348 23022 46044 361957 723914 1085871 1447828 2171742 3257613 4343484 6515226 13030452