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30488564 = 227622141
BaseRepresentation
bin111010001001…
…1011111110100
32010100222110002
41310103133310
530301113224
63005250432
7520101641
oct164233764
963328402
1030488564
1116234567
12a263a18
136416492
144098dc8
152a239ae
hex1d137f4

30488564 has 6 divisors (see below), whose sum is σ = 53354994. Its totient is φ = 15244280.

The previous prime is 30488539. The next prime is 30488569. The reversal of 30488564 is 46588403.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26112100 + 4376464 = 5110^2 + 2092^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30488569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3811067 + ... + 3811074.

It is an arithmetic number, because the mean of its divisors is an integer number (8892499).

Almost surely, 230488564 is an apocalyptic number.

It is an amenable number.

30488564 is a deficient number, since it is larger than the sum of its proper divisors (22866430).

30488564 is a wasteful number, since it uses less digits than its factorization.

30488564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7622145 (or 7622143 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 30488564 is about 5521.6450447308. The cubic root of 30488564 is about 312.4009337181.

The spelling of 30488564 in words is "thirty million, four hundred eighty-eight thousand, five hundred sixty-four".

Divisors: 1 2 4 7622141 15244282 30488564