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30243164 = 2275918307
BaseRepresentation
bin111001101011…
…1100101011100
32002220111211012
41303113211130
530220240124
63000114352
7515030330
oct163274534
962814735
1030243164
1116087156
12a1659b8
13635b883
1440337c0
1529c5e0e
hex1cd795c

30243164 has 24 divisors (see below), whose sum is σ = 61514880. Its totient is φ = 12740976.

The previous prime is 30243163. The next prime is 30243181. The reversal of 30243164 is 46134203.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30243163) 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, 7502 + ... + 10805.

It is an arithmetic number, because the mean of its divisors is an integer number (2563120).

Almost surely, 230243164 is an apocalyptic number.

It is an amenable number.

30243164 is an abundant number, since it is smaller than the sum of its proper divisors (31271716).

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

30243164 is a wasteful number, since it uses less digits than its factorization.

30243164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18377 (or 18375 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 30243164 is about 5499.3785103410. The cubic root of 30243164 is about 311.5605115068.

Adding to 30243164 its reverse (46134203), we get a palindrome (76377367).

The spelling of 30243164 in words is "thirty million, two hundred forty-three thousand, one hundred sixty-four".

Divisors: 1 2 4 7 14 28 59 118 236 413 826 1652 18307 36614 73228 128149 256298 512596 1080113 2160226 4320452 7560791 15121582 30243164