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13028119749 = 322841150951
BaseRepresentation
bin11000010001000100…
…10101010011000101
31020121221201001111200
430020202111103011
5203140144312444
65552433453113
7640564122261
oct141042252305
936557631450
1013028119749
115586041217
122637111199
1312c8168bc8
148b83a90a1
15513b58969
hex3088954c5

13028119749 has 12 divisors (see below), whose sum is σ = 18819426912. Its totient is φ = 8684937000.

The previous prime is 13028119729. The next prime is 13028119757. The reversal of 13028119749 is 94791182031.

It is not a de Polignac number, because 13028119749 - 213 = 13028111557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13028119729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230224 + ... + 281174.

It is an arithmetic number, because the mean of its divisors is an integer number (1568285576).

Almost surely, 213028119749 is an apocalyptic number.

It is an amenable number.

13028119749 is a deficient number, since it is larger than the sum of its proper divisors (5791307163).

13028119749 is a wasteful number, since it uses less digits than its factorization.

13028119749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79368 (or 79365 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The spelling of 13028119749 in words is "thirteen billion, twenty-eight million, one hundred nineteen thousand, seven hundred forty-nine".

Divisors: 1 3 9 28411 50951 85233 152853 255699 458559 1447568861 4342706583 13028119749