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30042232 = 23112314843
BaseRepresentation
bin111001010011…
…0100001111000
32002112022012021
41302212201320
530142322412
62551524224
7513232453
oct162464170
962468167
1030042232
1115a5a1a0
12a089674
1362bb28c
143dc049a
152986607
hex1ca6878

30042232 has 32 divisors (see below), whose sum is σ = 64126080. Its totient is φ = 13060960.

The previous prime is 30042223. The next prime is 30042239. The reversal of 30042232 is 23224003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30042239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5398 + ... + 9445.

It is an arithmetic number, because the mean of its divisors is an integer number (2003940).

Almost surely, 230042232 is an apocalyptic number.

It is an amenable number.

30042232 is an abundant number, since it is smaller than the sum of its proper divisors (34083848).

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

30042232 is a wasteful number, since it uses less digits than its factorization.

30042232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14883 (or 14879 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 30042232 is about 5481.0794557277. The cubic root of 30042232 is about 310.8689873897.

Adding to 30042232 its reverse (23224003), we get a palindrome (53266235).

The spelling of 30042232 in words is "thirty million, forty-two thousand, two hundred thirty-two".

Divisors: 1 2 4 8 11 22 23 44 46 88 92 184 253 506 1012 2024 14843 29686 59372 118744 163273 326546 341389 653092 682778 1306184 1365556 2731112 3755279 7510558 15021116 30042232