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130305024 = 210341571
BaseRepresentation
bin1111100010001…
…00110000000000
3100002012011220000
413301010300000
5231324230044
620532520000
73141401013
oct761046000
9302164800
10130305024
1167610103
1237780000
1320cc4585
141343d37a
15b68dd69
hex7c44c00

130305024 has 110 divisors (see below), whose sum is σ = 389363964. Its totient is φ = 43407360.

The previous prime is 130305023. The next prime is 130305029. The reversal of 130305024 is 420503031.

130305024 is a `hidden beast` number, since 130 + 30 + 502 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 130304988 and 130305006.

It is not an unprimeable number, because it can be changed into a prime (130305023) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 82159 + ... + 83729.

Almost surely, 2130305024 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 130305024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194681982).

130305024 is an abundant number, since it is smaller than the sum of its proper divisors (259058940).

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

130305024 is an equidigital number, since it uses as much as digits as its factorization.

130305024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 130305024 is about 11415.1226011813. The cubic root of 130305024 is about 506.9755949178.

Adding to 130305024 its reverse (420503031), we get a palindrome (550808055).

It can be divided in two parts, 1 and 30305024, that added together give a square (30305025 = 55052).

The spelling of 130305024 in words is "one hundred thirty million, three hundred five thousand, twenty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 256 288 324 384 432 512 576 648 768 864 1024 1152 1296 1536 1571 1728 2304 2592 3072 3142 3456 4608 4713 5184 6284 6912 9216 9426 10368 12568 13824 14139 18852 20736 25136 27648 28278 37704 41472 42417 50272 56556 75408 82944 84834 100544 113112 127251 150816 169668 201088 226224 254502 301632 339336 402176 452448 509004 603264 678672 804352 904896 1018008 1206528 1357344 1608704 1809792 2036016 2413056 2714688 3619584 4072032 4826112 5429376 7239168 8144064 10858752 14478336 16288128 21717504 32576256 43435008 65152512 130305024