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1013303231 = 19311720379
BaseRepresentation
bin111100011001011…
…100011110111111
32121121201010201022
4330121130132333
54033401200411
6244314334355
734052635553
oct7431343677
92547633638
101013303231
1147aa8a796
1224342a3bb
13131c17415
1498811863
155de5cedb
hex3c65c7bf

1013303231 has 8 divisors (see below), whose sum is σ = 1101043200. Its totient is φ = 929004120.

The previous prime is 1013303227. The next prime is 1013303261. The reversal of 1013303231 is 1323033101.

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

It is a cyclic number.

It is not a de Polignac number, because 1013303231 - 22 = 1013303227 is a prime.

It is a super-2 number, since 2×10133032312 = 2053566875910078722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013303261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 859601 + ... + 860778.

It is an arithmetic number, because the mean of its divisors is an integer number (137630400).

Almost surely, 21013303231 is an apocalyptic number.

1013303231 is a deficient number, since it is larger than the sum of its proper divisors (87739969).

1013303231 is a wasteful number, since it uses less digits than its factorization.

1013303231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720429.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1013303231 is about 31832.4242086587. The cubic root of 1013303231 is about 1004.4148903922.

Adding to 1013303231 its reverse (1323033101), we get a palindrome (2336336332).

The spelling of 1013303231 in words is "one billion, thirteen million, three hundred three thousand, two hundred thirty-one".

Divisors: 1 19 31 589 1720379 32687201 53331749 1013303231