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1380102105 = 35233394879
BaseRepresentation
bin101001001000010…
…1010111111011001
310120011220110011210
41102100222333121
510311301231410
6344540213333
746125450204
oct12220527731
93504813153
101380102105
11649039158
1232623a249
1318cc02985
14d141293b
1581264220
hex5242afd9

1380102105 has 16 divisors (see below), whose sum is σ = 2217646080. Its totient is φ = 732893568.

The previous prime is 1380102089. The next prime is 1380102121. The reversal of 1380102105 is 5012010831.

It is an interprime number because it is at equal distance from previous prime (1380102089) and next prime (1380102121).

It is not a de Polignac number, because 1380102105 - 24 = 1380102089 is a prime.

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, 193945 + ... + 200934.

It is an arithmetic number, because the mean of its divisors is an integer number (138602880).

Almost surely, 21380102105 is an apocalyptic number.

1380102105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1380102105 is a deficient number, since it is larger than the sum of its proper divisors (837543975).

1380102105 is a wasteful number, since it uses less digits than its factorization.

1380102105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395120.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1380102105 is about 37149.7255036965. The cubic root of 1380102105 is about 1113.3637391049.

Adding to 1380102105 its reverse (5012010831), we get a palindrome (6392112936).

The spelling of 1380102105 in words is "one billion, three hundred eighty million, one hundred two thousand, one hundred five".

Divisors: 1 3 5 15 233 699 1165 3495 394879 1184637 1974395 5923185 92006807 276020421 460034035 1380102105