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30464980 = 22571319881
BaseRepresentation
bin111010000110…
…1101111010100
32010022210002121
41310031233110
530244334410
63004545324
7516643120
oct164155724
963283077
1030464980
1116218877
12a252244
136408820
144090580
152a1b9da
hex1d0dbd4

30464980 has 96 divisors (see below), whose sum is σ = 82978560. Its totient is φ = 9123840.

The previous prime is 30464963. The next prime is 30464981. The reversal of 30464980 is 8946403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30464981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34140 + ... + 35020.

It is an arithmetic number, because the mean of its divisors is an integer number (864360).

Almost surely, 230464980 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 30464980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41489280).

30464980 is an abundant number, since it is smaller than the sum of its proper divisors (52513580).

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

30464980 is a wasteful number, since it uses less digits than its factorization.

30464980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 927 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 30464980 is about 5519.5090361372. The cubic root of 30464980 is about 312.3203618229.

The spelling of 30464980 in words is "thirty million, four hundred sixty-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 13 14 19 20 26 28 35 38 52 65 70 76 91 95 130 133 140 182 190 247 260 266 364 380 455 494 532 665 881 910 988 1235 1330 1729 1762 1820 2470 2660 3458 3524 4405 4940 6167 6916 8645 8810 11453 12334 16739 17290 17620 22906 24668 30835 33478 34580 45812 57265 61670 66956 80171 83695 114530 117173 123340 160342 167390 217607 229060 234346 320684 334780 400855 435214 468692 585865 801710 870428 1088035 1171730 1523249 1603420 2176070 2343460 3046498 4352140 6092996 7616245 15232490 30464980