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13103052345 = 3351710335527
BaseRepresentation
bin11000011010000000…
…01011011000111001
31020211011201000201000
430031000023120321
5203313340133340
610004111515213
7642464051535
oct141500133071
936734630630
1013103052345
115614371189
122658228b09
13130a843916
148c4312bc5
1551a50ad30
hex30d00b639

13103052345 has 64 divisors (see below), whose sum is σ = 24692912640. Its totient is φ = 6569662464.

The previous prime is 13103052337. The next prime is 13103052349. The reversal of 13103052345 is 54325030131.

13103052345 is a `hidden beast` number, since 1 + 3 + 10 + 305 + 2 + 345 = 666.

It is not a de Polignac number, because 13103052345 - 23 = 13103052337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13103052349) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2367972 + ... + 2373498.

It is an arithmetic number, because the mean of its divisors is an integer number (385826760).

Almost surely, 213103052345 is an apocalyptic number.

13103052345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13103052345 is a deficient number, since it is larger than the sum of its proper divisors (11589860295).

13103052345 is a wasteful number, since it uses less digits than its factorization.

13103052345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6591 (or 6585 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 13103052345 its reverse (54325030131), we get a palindrome (67428082476).

The spelling of 13103052345 in words is "thirteen billion, one hundred three million, fifty-two thousand, three hundred forty-five".

Divisors: 1 3 5 9 15 17 27 45 51 85 135 153 255 459 765 1033 2295 3099 5165 5527 9297 15495 16581 17561 27635 27891 46485 49743 52683 82905 87805 93959 139455 149229 158049 248715 263415 281877 469795 474147 746145 790245 845631 1409385 2370735 2536893 4228155 5709391 12684465 17128173 28546955 51384519 85640865 97059647 154153557 256922595 291178941 485298235 770767785 873536823 1455894705 2620610469 4367684115 13103052345