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30372608 = 28717997
BaseRepresentation
bin111001111011…
…1001100000000
32010011002101102
41303313030000
530233410413
63002553532
7516106610
oct163671400
963132342
1030372608
1116165432
12a2088a8
1363a5776
144068a40
1529ee458
hex1cf7300

30372608 has 72 divisors (see below), whose sum is σ = 73436832. Its totient is φ = 12238848.

The previous prime is 30372509. The next prime is 30372631. The reversal of 30372608 is 80627303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29966 + ... + 30962.

It is an arithmetic number, because the mean of its divisors is an integer number (1019956).

Almost surely, 230372608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30372608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36718416).

30372608 is an abundant number, since it is smaller than the sum of its proper divisors (43064224).

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

30372608 is an equidigital number, since it uses as much as digits as its factorization.

30372608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1037 (or 1023 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 30372608 is about 5511.1349103429. The cubic root of 30372608 is about 312.0043830197.

The spelling of 30372608 in words is "thirty million, three hundred seventy-two thousand, six hundred eight".

Divisors: 1 2 4 7 8 14 16 17 28 32 34 56 64 68 112 119 128 136 224 238 256 272 448 476 544 896 952 997 1088 1792 1904 1994 2176 3808 3988 4352 6979 7616 7976 13958 15232 15952 16949 27916 30464 31904 33898 55832 63808 67796 111664 118643 127616 135592 223328 237286 255232 271184 446656 474572 542368 893312 949144 1084736 1786624 1898288 2169472 3796576 4338944 7593152 15186304 30372608