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13021030312 = 2367154915683
BaseRepresentation
bin11000010000001110…
…10010011110101000
31020121110100212121221
430020013102132220
5203131340432222
65552021511424
7640446634333
oct141007223650
936543325557
1013021030312
115582039884
122634872574
1312c6856084
148b748161a
155132080c7
hex3081d27a8

13021030312 has 32 divisors (see below), whose sum is σ = 24796404000. Its totient is φ = 6408794304.

The previous prime is 13021030307. The next prime is 13021030327. The reversal of 13021030312 is 21303012031.

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, 822423 + ... + 838105.

It is an arithmetic number, because the mean of its divisors is an integer number (774887625).

Almost surely, 213021030312 is an apocalyptic number.

It is an amenable number.

13021030312 is a deficient number, since it is larger than the sum of its proper divisors (11775373688).

13021030312 is a wasteful number, since it uses less digits than its factorization.

13021030312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17305 (or 17301 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13021030312 its reverse (21303012031), we get a palindrome (34324042343).

The spelling of 13021030312 in words is "thirteen billion, twenty-one million, thirty thousand, three hundred twelve".

Divisors: 1 2 4 8 67 134 268 536 1549 3098 6196 12392 15683 31366 62732 103783 125464 207566 415132 830264 1050761 2101522 4203044 8406088 24292967 48585934 97171868 194343736 1627628789 3255257578 6510515156 13021030312