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30245664 = 253315059
BaseRepresentation
bin111001101100…
…0001100100000
32002220122020210
41303120030200
530220330124
63000134120
7515040531
oct163301440
962818223
1030245664
1116089019
12a167340
13635ca57
144034688
1529c6a29
hex1cd8320

30245664 has 24 divisors (see below), whose sum is σ = 79395120. Its totient is φ = 10081856.

The previous prime is 30245653. The next prime is 30245681. The reversal of 30245664 is 46654203.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157434 + ... + 157625.

It is an arithmetic number, because the mean of its divisors is an integer number (3308130).

Almost surely, 230245664 is an apocalyptic number.

It is an amenable number.

30245664 is an abundant number, since it is smaller than the sum of its proper divisors (49149456).

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

30245664 is a wasteful number, since it uses less digits than its factorization.

30245664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315072 (or 315064 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 30245664 is about 5499.6058040554. The cubic root of 30245664 is about 311.5690961445.

Adding to 30245664 its reverse (46654203), we get a palindrome (76899867).

It can be divided in two parts, 3024566 and 4, that added together give a triangular number (3024570 = T2459).

The spelling of 30245664 in words is "thirty million, two hundred forty-five thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 315059 630118 945177 1260236 1890354 2520472 3780708 5040944 7561416 10081888 15122832 30245664