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11520426975 = 3521783108863
BaseRepresentation
bin10101011101010101…
…11100001111011111
31002201212201022211120
422232222330033133
5142043212130400
65143054422023
7555326004441
oct125652741737
932655638746
1011520426975
114981a87332
122296201913
1311179b22c5
147b4062491
154765deca0
hex2aeabc3df

11520426975 has 48 divisors (see below), whose sum is σ = 20410693632. Its totient is φ = 5713077760.

The previous prime is 11520426971. The next prime is 11520426977. The reversal of 11520426975 is 57962402511.

It is not a de Polignac number, because 11520426975 - 22 = 11520426971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11520426971) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51394 + ... + 160256.

It is an arithmetic number, because the mean of its divisors is an integer number (425222784).

Almost surely, 211520426975 is an apocalyptic number.

11520426975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11520426975 is a deficient number, since it is larger than the sum of its proper divisors (8890266657).

11520426975 is a wasteful number, since it uses less digits than its factorization.

11520426975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108976 (or 108971 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 11520426975 in words is "eleven billion, five hundred twenty million, four hundred twenty-six thousand, nine hundred seventy-five".

Divisors: 1 3 5 15 17 25 51 75 83 85 249 255 415 425 1245 1275 1411 2075 4233 6225 7055 21165 35275 105825 108863 326589 544315 1632945 1850671 2721575 5552013 8164725 9035629 9253355 27106887 27760065 45178145 46266775 135534435 138800325 153605693 225890725 460817079 677672175 768028465 2304085395 3840142325 11520426975