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11713861 = 19616519
BaseRepresentation
bin101100101011…
…110101000101
3211001010101201
4230223311011
510444320421
61055022501
7201365125
oct54536505
924033351
1011713861
116680885
123b0aa31
1325719a3
1417acc85
151065b91
hexb2bd45

11713861 has 4 divisors (see below), whose sum is σ = 12330400. Its totient is φ = 11097324.

The previous prime is 11713859. The next prime is 11713907. The reversal of 11713861 is 16831711.

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 11713861 - 21 = 11713859 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 (11713841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308241 + ... + 308278.

It is an arithmetic number, because the mean of its divisors is an integer number (3082600).

Almost surely, 211713861 is an apocalyptic number.

It is an amenable number.

11713861 is a deficient number, since it is larger than the sum of its proper divisors (616539).

11713861 is an equidigital number, since it uses as much as digits as its factorization.

11713861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616538.

The product of its digits is 1008, while the sum is 28.

The square root of 11713861 is about 3422.5518257581. The cubic root of 11713861 is about 227.1084825012.

The spelling of 11713861 in words is "eleven million, seven hundred thirteen thousand, eight hundred sixty-one".

Divisors: 1 19 616519 11713861