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1301470521 = 31326074229
BaseRepresentation
bin100110110010010…
…1101110100111001
310100200221112220220
41031210231310321
510131134024041
6333051010253
744152213461
oct11544556471
93320845826
101301470521
1160871207a
12303a39989
13179831400
14c4bc4ba1
15793d0d66
hex4d92dd39

1301470521 has 24 divisors (see below), whose sum is σ = 1882586880. Its totient is φ = 799396416.

The previous prime is 1301470507. The next prime is 1301470537. The reversal of 1301470521 is 1250741031.

It is not a de Polignac number, because 1301470521 - 27 = 1301470393 is a prime.

It is a super-2 number, since 2×13014705212 = 3387651034064022882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1301470491 and 1301470500.

It is not an unprimeable number, because it can be changed into a prime (1301470501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 305635 + ... + 309863.

It is an arithmetic number, because the mean of its divisors is an integer number (78441120).

Almost surely, 21301470521 is an apocalyptic number.

It is an amenable number.

1301470521 is a deficient number, since it is larger than the sum of its proper divisors (581116359).

1301470521 is a wasteful number, since it uses less digits than its factorization.

1301470521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4865 (or 4852 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1301470521 is about 36075.8994482466. The cubic root of 1301470521 is about 1091.8042449558.

The spelling of 1301470521 in words is "one billion, three hundred one million, four hundred seventy thousand, five hundred twenty-one".

Divisors: 1 3 13 39 169 507 607 1821 4229 7891 12687 23673 54977 102583 164931 307749 714701 2144103 2567003 7701009 33371039 100113117 433823507 1301470521