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30340452 = 2232528371
BaseRepresentation
bin111001110111…
…1010101100100
32010002110021110
41303233111210
530231343302
63002145020
7515614062
oct163572544
963073243
1030340452
111614325a
12a1b2170
136393c3c
14405b032
1529e4b6c
hex1cef564

30340452 has 12 divisors (see below), whose sum is σ = 70794416. Its totient is φ = 10113480.

The previous prime is 30340441. The next prime is 30340459. The reversal of 30340452 is 25404303.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (30340459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1264174 + ... + 1264197.

Almost surely, 230340452 is an apocalyptic number.

It is an amenable number.

30340452 is an abundant number, since it is smaller than the sum of its proper divisors (40453964).

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

30340452 is a wasteful number, since it uses less digits than its factorization.

30340452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528378 (or 2528376 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 30340452 is about 5508.2167713335. The cubic root of 30340452 is about 311.8942360120.

Adding to 30340452 its reverse (25404303), we get a palindrome (55744755).

It can be divided in two parts, 303 and 40452, that added together give a triangular number (40755 = T285).

The spelling of 30340452 in words is "thirty million, three hundred forty thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 12 2528371 5056742 7585113 10113484 15170226 30340452