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13581928413 = 323161997853
BaseRepresentation
bin11001010011000101…
…11100011111011101
31022001112210110011200
430221202330133131
5210303433202123
610123415510113
7660400325634
oct145142743735
938045713150
1013581928413
11583a70a929
122770688339
131385b10b41
1492bb6a51b
155475a0143
hex3298bc7dd

13581928413 has 24 divisors (see below), whose sum is σ = 20257036800. Its totient is φ = 8760005280.

The previous prime is 13581928391. The next prime is 13581928417. The reversal of 13581928413 is 31482918531.

13581928413 is a `hidden beast` number, since 1 + 3 + 581 + 9 + 28 + 41 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2k-13581928413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13581928417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1725595 + ... + 1733447.

It is an arithmetic number, because the mean of its divisors is an integer number (844043200).

Almost surely, 213581928413 is an apocalyptic number.

It is an amenable number.

13581928413 is a deficient number, since it is larger than the sum of its proper divisors (6675108387).

13581928413 is a wasteful number, since it uses less digits than its factorization.

13581928413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14089 (or 14086 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The spelling of 13581928413 in words is "thirteen billion, five hundred eighty-one million, nine hundred twenty-eight thousand, four hundred thirteen".

Divisors: 1 3 9 31 93 279 6199 7853 18597 23559 55791 70677 192169 243443 576507 730329 1729521 2190987 48680747 146042241 438126723 1509103157 4527309471 13581928413