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1310023100 = 225213100231
BaseRepresentation
bin100111000010101…
…0101110110111100
310101022001001212002
41032011111312330
510140331214400
6333554201432
744315004221
oct11605256674
93338031762
101310023100
11612523821
12306883278
1317b5371c9
14c5dad948
157a01eed5
hex4e155dbc

1310023100 has 18 divisors (see below), whose sum is σ = 2842750344. Its totient is φ = 524009200.

The previous prime is 1310023063. The next prime is 1310023159. The reversal of 1310023100 is 13200131.

It is a super-2 number, since 2×13100231002 = 3432321045067220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 6550016 + ... + 6550215.

Almost surely, 21310023100 is an apocalyptic number.

1310023100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310023100 is an abundant number, since it is smaller than the sum of its proper divisors (1532727244).

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

1310023100 is a wasteful number, since it uses less digits than its factorization.

1310023100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13100245 (or 13100238 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1310023100 is about 36194.2412546527. The cubic root of 1310023100 is about 1094.1906127900.

Adding to 1310023100 its reverse (13200131), we get a palindrome (1323223231).

The spelling of 1310023100 in words is "one billion, three hundred ten million, twenty-three thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 13100231 26200462 52400924 65501155 131002310 262004620 327505775 655011550 1310023100