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11912741 = 83143527
BaseRepresentation
bin101101011100…
…011000100101
3211102020012122
4231130120211
511022201431
61103155325
7203154011
oct55343045
924366178
1011912741
1167a7245
123ba5b45
132611379
141821541
1510a4a7b
hexb5c625

11912741 has 4 divisors (see below), whose sum is σ = 12056352. Its totient is φ = 11769132.

The previous prime is 11912731. The next prime is 11912807. The reversal of 11912741 is 14721911.

11912741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11912741 - 210 = 11911717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11912741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11912731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71681 + ... + 71846.

It is an arithmetic number, because the mean of its divisors is an integer number (3014088).

Almost surely, 211912741 is an apocalyptic number.

It is an amenable number.

11912741 is a deficient number, since it is larger than the sum of its proper divisors (143611).

11912741 is an equidigital number, since it uses as much as digits as its factorization.

11912741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143610.

The product of its digits is 504, while the sum is 26.

The square root of 11912741 is about 3451.4838837810. The cubic root of 11912741 is about 228.3865723205.

The spelling of 11912741 in words is "eleven million, nine hundred twelve thousand, seven hundred forty-one".

Divisors: 1 83 143527 11912741