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154252775513 = 71283227127
BaseRepresentation
bin1000111110101000101…
…1101001000001011001
3112202011010210220010202
42033222023221001121
510011402202304023
6154510204151545
714100345646454
oct2175213510131
9482133726122
10154252775513
115a466741361
1225a8ab385b5
1311713675985
14767450449b
15402c136128
hex23ea2e9059

154252775513 has 12 divisors (see below), whose sum is σ = 156985829568. Its totient is φ = 151537228920.

The previous prime is 154252775491. The next prime is 154252775519. The reversal of 154252775513 is 315577252451.

It is not a de Polignac number, because 154252775513 - 212 = 154252771417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154252775519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5672756 + ... + 5699882.

It is an arithmetic number, because the mean of its divisors is an integer number (13082152464).

Almost surely, 2154252775513 is an apocalyptic number.

It is an amenable number.

154252775513 is a deficient number, since it is larger than the sum of its proper divisors (2733054055).

154252775513 is an frugal number, since it uses more digits than its factorization.

154252775513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27764 (or 27481 counting only the distinct ones).

The product of its digits is 1470000, while the sum is 47.

The spelling of 154252775513 in words is "one hundred fifty-four billion, two hundred fifty-two million, seven hundred seventy-five thousand, five hundred thirteen".

Divisors: 1 71 283 20093 27127 80089 1926017 5686319 7676941 545062811 2172574303 154252775513