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1301403044 = 221249260489
BaseRepresentation
bin100110110010001…
…1101010110100100
310100200211010100202
41031210131112210
510131124344134
6333045330032
744151512654
oct11544352644
93320733322
101301403044
11608676407
12303a06918
13179809796
14c4ba8364
15793bad7e
hex4d91d5a4

1301403044 has 12 divisors (see below), whose sum is σ = 2279287500. Its totient is φ = 650178048.

The previous prime is 1301403029. The next prime is 1301403071. The reversal of 1301403044 is 4403041031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 258888100 + 1042514944 = 16090^2 + 32288^2 .

It is a super-3 number, since 3×13014030443 (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125249 + ... + 135240.

It is an arithmetic number, because the mean of its divisors is an integer number (189940625).

Almost surely, 21301403044 is an apocalyptic number.

It is an amenable number.

1301403044 is a deficient number, since it is larger than the sum of its proper divisors (977884456).

1301403044 is a wasteful number, since it uses less digits than its factorization.

1301403044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261742 (or 261740 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1301403044 is about 36074.9642272865. The cubic root of 1301403044 is about 1091.7853758005.

Adding to 1301403044 its reverse (4403041031), we get a palindrome (5704444075).

The spelling of 1301403044 in words is "one billion, three hundred one million, four hundred three thousand, forty-four".

Divisors: 1 2 4 1249 2498 4996 260489 520978 1041956 325350761 650701522 1301403044