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1020303613 = 7433389713
BaseRepresentation
bin111100110100001…
…001100011111101
32122002212210102201
4330310021203331
54042144203423
6245124351501
734166303050
oct7464114375
92562783381
101020303613
11483a3122a
12245845591
131334c8864
1499714a97
155e8922ad
hex3cd098fd

1020303613 has 8 divisors (see below), whose sum is σ = 1193179328. Its totient is φ = 854207424.

The previous prime is 1020303611. The next prime is 1020303631. The reversal of 1020303613 is 3163030201.

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

It is not a de Polignac number, because 1020303613 - 21 = 1020303611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020303611) 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 7 ways as a sum of consecutive naturals, for example, 1694556 + ... + 1695157.

It is an arithmetic number, because the mean of its divisors is an integer number (149147416).

Almost surely, 21020303613 is an apocalyptic number.

It is an amenable number.

1020303613 is a deficient number, since it is larger than the sum of its proper divisors (172875715).

1020303613 is an equidigital number, since it uses as much as digits as its factorization.

1020303613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389763.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1020303613 is about 31942.1917375749. The cubic root of 1020303613 is about 1006.7225766914.

Adding to 1020303613 its reverse (3163030201), we get a palindrome (4183333814).

The spelling of 1020303613 in words is "one billion, twenty million, three hundred three thousand, six hundred thirteen".

Divisors: 1 7 43 301 3389713 23727991 145757659 1020303613