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1303053985 = 51613161569
BaseRepresentation
bin100110110101011…
…0000011010100001
310100210221000000201
41031222300122201
510132040211420
6333144545201
744201530132
oct11552603241
93323830021
101303053985
116095a3822
12304482201
13179c6707c
14c50b7c89
15795e510a
hex4dab06a1

1303053985 has 8 divisors (see below), whose sum is σ = 1564643880. Its totient is φ = 1041790464.

The previous prime is 1303053979. The next prime is 1303054009. The reversal of 1303053985 is 5893503031.

It can be written as a sum of positive squares in 4 ways, for example, as 314140176 + 988913809 = 17724^2 + 31447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1303053985 is a prime.

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, 72720 + ... + 88849.

It is an arithmetic number, because the mean of its divisors is an integer number (195580485).

Almost surely, 21303053985 is an apocalyptic number.

It is an amenable number.

1303053985 is a deficient number, since it is larger than the sum of its proper divisors (261589895).

1303053985 is a wasteful number, since it uses less digits than its factorization.

1303053985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163187.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 1303053985 is about 36097.8390627472. The cubic root of 1303053985 is about 1092.2468550704.

The spelling of 1303053985 in words is "one billion, three hundred three million, fifty-three thousand, nine hundred eighty-five".

Divisors: 1 5 1613 8065 161569 807845 260610797 1303053985