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30042452 = 2211977039
BaseRepresentation
bin111001010011…
…0100101010100
32002112022111102
41302212211110
530142324302
62551525232
7513233216
oct162464524
962468442
1030042452
1115a5a380
12a089818
1362bb3cb
143dc05b6
152986702
hex1ca6954

30042452 has 24 divisors (see below), whose sum is σ = 57953280. Its totient is φ = 13512960.

The previous prime is 30042449. The next prime is 30042461. The reversal of 30042452 is 25424003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749 + ... + 7787.

It is an arithmetic number, because the mean of its divisors is an integer number (2414720).

Almost surely, 230042452 is an apocalyptic number.

It is an amenable number.

30042452 is a deficient number, since it is larger than the sum of its proper divisors (27910828).

30042452 is a wasteful number, since it uses less digits than its factorization.

30042452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7151 (or 7149 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 30042452 is about 5481.0995247304. The cubic root of 30042452 is about 310.8697462216.

Adding to 30042452 its reverse (25424003), we get a palindrome (55466455).

The spelling of 30042452 in words is "thirty million, forty-two thousand, four hundred fifty-two".

Divisors: 1 2 4 11 22 44 97 194 388 1067 2134 4268 7039 14078 28156 77429 154858 309716 682783 1365566 2731132 7510613 15021226 30042452