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1428512487213 = 37794051212557
BaseRepresentation
bin10100110010011001111…
…110101011011100101101
312001120020111021012220210
4110302121332223130231
5141401043144042323
63012125524133033
7205130604536640
oct24623176533455
95046214235823
101428512487213
1150091306aa09
121b0a31b37179
13a4928a5c696
144d1d7281a57
152725b3a9293
hex14c99fab72d

1428512487213 has 32 divisors (see below), whose sum is σ = 2204889640960. Its totient is φ = 805757284800.

The previous prime is 1428512487209. The next prime is 1428512487299. The reversal of 1428512487213 is 3127842158241.

It is not a de Polignac number, because 1428512487213 - 22 = 1428512487209 is a prime.

It is a super-2 number, since 2×14285124872132 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428512488213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6614331 + ... + 6826887.

It is an arithmetic number, because the mean of its divisors is an integer number (68902801280).

Almost surely, 21428512487213 is an apocalyptic number.

It is an amenable number.

1428512487213 is a deficient number, since it is larger than the sum of its proper divisors (776377153747).

1428512487213 is a wasteful number, since it uses less digits than its factorization.

1428512487213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216697.

The product of its digits is 860160, while the sum is 48.

The spelling of 1428512487213 in words is "one trillion, four hundred twenty-eight billion, five hundred twelve million, four hundred eighty-seven thousand, two hundred thirteen".

Divisors: 1 3 7 21 79 237 553 1659 4051 12153 28357 85071 212557 320029 637671 960087 1487899 2240203 4463697 6720609 16792003 50376009 117544021 352632063 861068407 2583205221 6027478849 18082436547 68024404153 204073212459 476170829071 1428512487213