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30764672 = 27240349
BaseRepresentation
bin111010101011…
…0111010000000
32010220000012022
41311112322000
530333432142
63015221012
7522331631
oct165267200
963800168
1030764672
1116402a54
12a377768
1364b2063
14412b888
152a7a6d2
hex1d56e80

30764672 has 16 divisors (see below), whose sum is σ = 61289250. Its totient is φ = 15382272.

The previous prime is 30764663. The next prime is 30764711. The reversal of 30764672 is 27646703.

It can be written as a sum of positive squares in only one way, i.e., 27290176 + 3474496 = 5224^2 + 1864^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120047 + ... + 120302.

Almost surely, 230764672 is an apocalyptic number.

30764672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30764672 is a deficient number, since it is larger than the sum of its proper divisors (30524578).

30764672 is an equidigital number, since it uses as much as digits as its factorization.

30764672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240363 (or 240351 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 30764672 is about 5546.5910251253. The cubic root of 30764672 is about 313.3411476347.

The spelling of 30764672 in words is "thirty million, seven hundred sixty-four thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 32 64 128 240349 480698 961396 1922792 3845584 7691168 15382336 30764672