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1020313211 = 10170114411
BaseRepresentation
bin111100110100001…
…011111001111011
32122002220021121012
4330310023321323
54042200010321
6245124504135
734166343041
oct7464137173
92562807535
101020313211
11483a38465
1224584b04b
13133500038
1499718391
155e89505b
hex3cd0be7b

1020313211 has 8 divisors (see below), whose sum is σ = 1031956848. Its totient is φ = 1008700000.

The previous prime is 1020313187. The next prime is 1020313223. The reversal of 1020313211 is 1123130201.

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 1020313211 - 210 = 1020312187 is a prime.

It is a super-2 number, since 2×10203132112 = 2082078097082261042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020313241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63596 + ... + 78006.

It is an arithmetic number, because the mean of its divisors is an integer number (128994606).

Almost surely, 21020313211 is an apocalyptic number.

1020313211 is a deficient number, since it is larger than the sum of its proper divisors (11643637).

1020313211 is a wasteful number, since it uses less digits than its factorization.

1020313211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15213.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1020313211 is about 31942.3419773817. The cubic root of 1020313211 is about 1006.7257334292.

Adding to 1020313211 its reverse (1123130201), we get a palindrome (2143443412).

The spelling of 1020313211 in words is "one billion, twenty million, three hundred thirteen thousand, two hundred eleven".

Divisors: 1 101 701 14411 70801 1455511 10102111 1020313211