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30345652 = 22311012423
BaseRepresentation
bin111001111000…
…0100110110100
32010002201102001
41303300212310
530232030102
63002225044
7515635201
oct163604664
963081361
1030345652
1116147157
12a1b5184
13639640c
14405cca8
1529e6487
hex1cf09b4

30345652 has 24 divisors (see below), whose sum is σ = 55383552. Its totient is φ = 14532000.

The previous prime is 30345643. The next prime is 30345673. The reversal of 30345652 is 25654303.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 30345652.

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 in 7 ways as a sum of consecutive naturals, for example, 11313 + ... + 13735.

It is an arithmetic number, because the mean of its divisors is an integer number (2307648).

Almost surely, 230345652 is an apocalyptic number.

It is an amenable number.

30345652 is a deficient number, since it is larger than the sum of its proper divisors (25037900).

30345652 is a wasteful number, since it uses less digits than its factorization.

30345652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559 (or 2557 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 30345652 is about 5508.6887732018. The cubic root of 30345652 is about 311.9120533403.

Adding to 30345652 its reverse (25654303), we get a palindrome (55999955).

The spelling of 30345652 in words is "thirty million, three hundred forty-five thousand, six hundred fifty-two".

Divisors: 1 2 4 31 62 101 124 202 404 2423 3131 4846 6262 9692 12524 75113 150226 244723 300452 489446 978892 7586413 15172826 30345652