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13520061611 = 74636616311
BaseRepresentation
bin11001001011101101…
…11100010010101011
31021220020101021212122
430211312330102223
5210142113432421
610113325501455
7656016425150
oct144566742253
937806337778
1013520061611
1158087a4441
122753a1188b
13137605c274
14923864227
15541e2e2ab
hex325dbc4ab

13520061611 has 16 divisors (see below), whose sum is σ = 15510755328. Its totient is φ = 11544271200.

The previous prime is 13520061601. The next prime is 13520061671. The reversal of 13520061611 is 11616002531.

It is not a de Polignac number, because 13520061611 - 26 = 13520061547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13520061601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2139146 + ... + 2145456.

It is an arithmetic number, because the mean of its divisors is an integer number (969422208).

Almost surely, 213520061611 is an apocalyptic number.

13520061611 is a deficient number, since it is larger than the sum of its proper divisors (1990693717).

13520061611 is an equidigital number, since it uses as much as digits as its factorization.

13520061611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7442.

The product of its (nonzero) digits is 1080, while the sum is 26.

The spelling of 13520061611 in words is "thirteen billion, five hundred twenty million, sixty-one thousand, six hundred eleven".

Divisors: 1 7 463 661 3241 4627 6311 44177 306043 2142301 2921993 4171571 20453951 29200997 1931437373 13520061611