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30839252 = 227709813
BaseRepresentation
bin111010110100…
…1000111010100
32011000210111112
41311221013110
530343324002
63020554152
7523062233
oct165510724
964023445
1030839252
1116453a94
12a3b2958
136509ca2
14414ab1a
152a92852
hex1d691d4

30839252 has 6 divisors (see below), whose sum is σ = 53968698. Its totient is φ = 15419624.

The previous prime is 30839243. The next prime is 30839273. The reversal of 30839252 is 25293803.

It can be written as a sum of positive squares in only one way, i.e., 25060036 + 5779216 = 5006^2 + 2404^2 .

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 as a sum of consecutive naturals, namely, 3854903 + ... + 3854910.

It is an arithmetic number, because the mean of its divisors is an integer number (8994783).

Almost surely, 230839252 is an apocalyptic number.

It is an amenable number.

30839252 is a deficient number, since it is larger than the sum of its proper divisors (23129446).

30839252 is a wasteful number, since it uses less digits than its factorization.

30839252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7709817 (or 7709815 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 30839252 is about 5553.3100039526. The cubic root of 30839252 is about 313.5941447999.

The spelling of 30839252 in words is "thirty million, eight hundred thirty-nine thousand, two hundred fifty-two".

Divisors: 1 2 4 7709813 15419626 30839252