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13147695028 = 221321512853
BaseRepresentation
bin11000011111010100…
…11110011110110100
31020221021201002221201
430033222132132310
5203411302220103
610012344422244
7643545364246
oct141752363664
936837632851
1013147695028
115637592966
12266b177984
131316b74700
148ca214096
1551e3c851d
hex30fa9e7b4

13147695028 has 54 divisors (see below), whose sum is σ = 25109985222. Its totient is φ = 6020913600.

The previous prime is 13147694941. The next prime is 13147695073. The reversal of 13147695028 is 82059674131.

It can be written as a sum of positive squares in 3 ways, for example, as 930372004 + 12217323024 = 30502^2 + 110532^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 15413050 + ... + 15413902.

It is a 1-persistent number, because it is pandigital, but 2⋅13147695028 = 26295390056 is not.

Almost surely, 213147695028 is an apocalyptic number.

It is an amenable number.

13147695028 is a deficient number, since it is larger than the sum of its proper divisors (11962290194).

13147695028 is a wasteful number, since it uses less digits than its factorization.

13147695028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185 (or 1019 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 13147695028 in words is "thirteen billion, one hundred forty-seven million, six hundred ninety-five thousand, twenty-eight".

Divisors: 1 2 4 13 26 52 151 169 302 338 604 676 853 1706 1963 3412 3926 7852 11089 22178 22801 25519 44356 45602 51038 91204 102076 128803 144157 257606 288314 296413 515212 576628 592826 1185652 1674439 3348878 3853369 6697756 7706738 15413476 19449253 21767707 38898506 43535414 77797012 87070828 252840289 505680578 1011361156 3286923757 6573847514 13147695028