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1313101000 = 235310113001
BaseRepresentation
bin100111001000100…
…0101010011001000
310101111211102221101
41032101011103020
510142123213000
6334144151144
744353113541
oct11621052310
93344742841
101313101000
11614236242
123079084b4
1317c074153
14c65714c8
157a42be6a
hex4e4454c8

1313101000 has 64 divisors (see below), whose sum is σ = 3103317360. Its totient is φ = 520000000.

The previous prime is 1313100977. The next prime is 1313101021. The reversal of 1313101000 is 1013131.

It can be written as a sum of positive squares in 8 ways, for example, as 24147396 + 1288953604 = 4914^2 + 35902^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94500 + ... + 107500.

Almost surely, 21313101000 is an apocalyptic number.

1313101000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1313101000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1551658680).

1313101000 is an abundant number, since it is smaller than the sum of its proper divisors (1790216360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313101000 is a wasteful number, since it uses less digits than its factorization.

1313101000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13123 (or 13109 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 1313101000 is about 36236.7355041814. The cubic root of 1313101000 is about 1095.0468763597.

Adding to 1313101000 its reverse (1013131), we get a palindrome (1314114131).

The spelling of 1313101000 in words is "one billion, three hundred thirteen million, one hundred one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 101 125 200 202 250 404 500 505 808 1000 1010 2020 2525 4040 5050 10100 12625 13001 20200 25250 26002 50500 52004 65005 101000 104008 130010 260020 325025 520040 650050 1300100 1313101 1625125 2600200 2626202 3250250 5252404 6500500 6565505 10504808 13001000 13131010 26262020 32827525 52524040 65655050 131310100 164137625 262620200 328275250 656550500 1313101000