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13895260728 = 2331930472063
BaseRepresentation
bin11001111000011100…
…01101101000111000
31022212101101101022020
430330032031220320
5211424141320403
610214451354440
71001223524136
oct147416155070
938771341266
1013895260728
115990570058
1228395b2a20
1314059c918b
1495b610756
15564d44453
hex33c38da38

13895260728 has 32 divisors (see below), whose sum is σ = 36566476800. Its totient is φ = 4387976928.

The previous prime is 13895260697. The next prime is 13895260801. The reversal of 13895260728 is 82706259831.

13895260728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15235576 + ... + 15236487.

It is an arithmetic number, because the mean of its divisors is an integer number (1142702400).

Almost surely, 213895260728 is an apocalyptic number.

It is an amenable number.

13895260728 is an abundant number, since it is smaller than the sum of its proper divisors (22671216072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13895260728 is a wasteful number, since it uses less digits than its factorization.

13895260728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30472091 (or 30472087 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The spelling of 13895260728 in words is "thirteen billion, eight hundred ninety-five million, two hundred sixty thousand, seven hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 30472063 60944126 91416189 121888252 182832378 243776504 365664756 578969197 731329512 1157938394 1736907591 2315876788 3473815182 4631753576 6947630364 13895260728