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11427147751 = 196141923531
BaseRepresentation
bin10101010010001110…
…00110111111100111
31002111101012020210111
422221013012333213
5141400322212001
65125523233451
7553114103365
oct125107067747
932441166714
1011427147751
114934366268
12226ab18887
1311015828b6
147a5900635
1546d316851
hex2a91c6fe7

11427147751 has 16 divisors (see below), whose sum is σ = 12255465600. Its totient is φ = 10622383200.

The previous prime is 11427147749. The next prime is 11427147779. The reversal of 11427147751 is 15774172411.

It is not a de Polignac number, because 11427147751 - 21 = 11427147749 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 (11427147701) 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, 473856 + ... + 497386.

It is an arithmetic number, because the mean of its divisors is an integer number (765966600).

Almost surely, 211427147751 is an apocalyptic number.

11427147751 is a deficient number, since it is larger than the sum of its proper divisors (828317849).

11427147751 is a wasteful number, since it uses less digits than its factorization.

11427147751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24030.

The product of its digits is 54880, while the sum is 40.

The spelling of 11427147751 in words is "eleven billion, four hundred twenty-seven million, one hundred forty-seven thousand, seven hundred fifty-one".

Divisors: 1 19 61 419 1159 7961 23531 25559 447089 485621 1435391 9859489 27272429 187330291 601428829 11427147751