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13146131464 = 2319457189251
BaseRepresentation
bin11000011111001001…
…00000110000001000
31020221011202200010221
430033210200300020
5203410402201324
610012251115424
7643526162614
oct141744406010
936834680127
1013146131464
115636715164
12266a742b74
131316747b1b
148c9d28344
1551e1ba0e4
hex30f920c08

13146131464 has 32 divisors (see below), whose sum is σ = 26003224800. Its totient is φ = 6213456000.

The previous prime is 13146131431. The next prime is 13146131477. The reversal of 13146131464 is 46413164131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25162 + ... + 164089.

It is an arithmetic number, because the mean of its divisors is an integer number (812600775).

Almost surely, 213146131464 is an apocalyptic number.

It is an amenable number.

13146131464 is a deficient number, since it is larger than the sum of its proper divisors (12857093336).

13146131464 is a wasteful number, since it uses less digits than its factorization.

13146131464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189733 (or 189729 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

Adding to 13146131464 its reverse (46413164131), we get a palindrome (59559295595).

The spelling of 13146131464 in words is "thirteen billion, one hundred forty-six million, one hundred thirty-one thousand, four hundred sixty-four".

Divisors: 1 2 4 8 19 38 76 152 457 914 1828 3656 8683 17366 34732 69464 189251 378502 757004 1514008 3595769 7191538 14383076 28766152 86487707 172975414 345950828 691901656 1643266433 3286532866 6573065732 13146131464