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30423252 = 2232535271
BaseRepresentation
bin111010000001…
…1100011010100
32010020122212010
41310003203110
530242021002
63004024220
7516410346
oct164034324
963218763
1030423252
111619a492
12a232070
1363c2832
14407d296
152a0e46c
hex1d038d4

30423252 has 12 divisors (see below), whose sum is σ = 70987616. Its totient is φ = 10141080.

The previous prime is 30423247. The next prime is 30423257. The reversal of 30423252 is 25232403.

It is an interprime number because it is at equal distance from previous prime (30423247) and next prime (30423257).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30423257) 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 3 ways as a sum of consecutive naturals, for example, 1267624 + ... + 1267647.

Almost surely, 230423252 is an apocalyptic number.

It is an amenable number.

30423252 is an abundant number, since it is smaller than the sum of its proper divisors (40564364).

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

30423252 is a wasteful number, since it uses less digits than its factorization.

30423252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2535278 (or 2535276 counting only the distinct ones).

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

The square root of 30423252 is about 5515.7276945114. The cubic root of 30423252 is about 312.1777012028.

Adding to 30423252 its reverse (25232403), we get a palindrome (55655655).

The spelling of 30423252 in words is "thirty million, four hundred twenty-three thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 2535271 5070542 7605813 10141084 15211626 30423252