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11272019885 = 571572051323
BaseRepresentation
bin10100111111101110…
…10101111110101101
31002002120021221100222
422133313111332231
5141041114114020
65102302301125
7546221405510
oct123767257655
932076257328
1011272019885
114864841415
122226b877a5
1310a83a9969
1478d07cd77
1545e8c2b25
hex29fdd5fad

11272019885 has 16 divisors (see below), whose sum is σ = 15557241216. Its totient is φ = 7680149568.

The previous prime is 11272019867. The next prime is 11272019887. The reversal of 11272019885 is 58891027211.

It is not a de Polignac number, because 11272019885 - 26 = 11272019821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11272019887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1020167 + ... + 1031156.

It is an arithmetic number, because the mean of its divisors is an integer number (972327576).

Almost surely, 211272019885 is an apocalyptic number.

It is an amenable number.

11272019885 is a deficient number, since it is larger than the sum of its proper divisors (4285221331).

11272019885 is a wasteful number, since it uses less digits than its factorization.

11272019885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051492.

The product of its (nonzero) digits is 80640, while the sum is 44.

The spelling of 11272019885 in words is "eleven billion, two hundred seventy-two million, nineteen thousand, eight hundred eighty-five".

Divisors: 1 5 7 35 157 785 1099 5495 2051323 10256615 14359261 71796305 322057711 1610288555 2254403977 11272019885