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1313153530 = 251310101181
BaseRepresentation
bin100111001000101…
…0010000111111010
310101111221002222221
41032101102013322
510142131403110
6334145234254
744353422643
oct11621220772
93344832887
101313153530
11614271757
1230793298a
1317c092030
14c65866ca
157a43c7da
hex4e4521fa

1313153530 has 16 divisors (see below), whose sum is σ = 2545497864. Its totient is φ = 484856640.

The previous prime is 1313153509. The next prime is 1313153533. The reversal of 1313153530 is 353513131.

It can be written as a sum of positive squares in 4 ways, for example, as 445674321 + 867479209 = 21111^2 + 29453^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1313153495 and 1313153504.

It is not an unprimeable number, because it can be changed into a prime (1313153533) 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, 5050461 + ... + 5050720.

Almost surely, 21313153530 is an apocalyptic number.

1313153530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313153530 is a deficient number, since it is larger than the sum of its proper divisors (1232344334).

1313153530 is a wasteful number, since it uses less digits than its factorization.

1313153530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10101201.

The product of its (nonzero) digits is 2025, while the sum is 25.

The square root of 1313153530 is about 36237.4603138796. The cubic root of 1313153530 is about 1095.0614784467.

Adding to 1313153530 its reverse (353513131), we get a palindrome (1666666661).

The spelling of 1313153530 in words is "one billion, three hundred thirteen million, one hundred fifty-three thousand, five hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 10101181 20202362 50505905 101011810 131315353 262630706 656576765 1313153530