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13745471948 = 22131913912421
BaseRepresentation
bin11001100110100101…
…10100000111001100
31022110221112022201122
430303102310013030
5211122320100243
610151541100112
7664424404145
oct146322640714
938427468648
1013745471948
115913a6257a
1227b73b7638
1313b0972470
1494577cacc
15556b07668
hex3334b41cc

13745471948 has 24 divisors (see below), whose sum is σ = 27268347120. Its totient is φ = 6010165440.

The previous prime is 13745471947. The next prime is 13745471969. The reversal of 13745471948 is 84917454731.

It is a self number, because there is not a number n which added to its sum of digits gives 13745471948.

It is not an unprimeable number, because it can be changed into a prime (13745471947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6955223 + ... + 6957198.

It is an arithmetic number, because the mean of its divisors is an integer number (1136181130).

Almost surely, 213745471948 is an apocalyptic number.

It is an amenable number.

13745471948 is a deficient number, since it is larger than the sum of its proper divisors (13522875172).

13745471948 is a wasteful number, since it uses less digits than its factorization.

13745471948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13912457 (or 13912455 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 53.

The spelling of 13745471948 in words is "thirteen billion, seven hundred forty-five million, four hundred seventy-one thousand, nine hundred forty-eight".

Divisors: 1 2 4 13 19 26 38 52 76 247 494 988 13912421 27824842 55649684 180861473 264335999 361722946 528671998 723445892 1057343996 3436367987 6872735974 13745471948