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111379 = 127877
BaseRepresentation
bin11011001100010011
312122210011
4123030103
512031004
62215351
7642502
oct331423
9178704
10111379
1176754
1254557
133b908
142c839
1523004
hex1b313

111379 has 4 divisors (see below), whose sum is σ = 112384. Its totient is φ = 110376.

The previous prime is 111373. The next prime is 111409. The reversal of 111379 is 973111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 973111 = 1377103.

It is a cyclic number.

It is not a de Polignac number, because 111379 - 25 = 111347 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (111373) 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, 312 + ... + 565.

It is an arithmetic number, because the mean of its divisors is an integer number (28096).

2111379 is an apocalyptic number.

111379 is a deficient number, since it is larger than the sum of its proper divisors (1005).

111379 is an equidigital number, since it uses as much as digits as its factorization.

111379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004.

The product of its digits is 189, while the sum is 22.

The square root of 111379 is about 333.7349247532. The cubic root of 111379 is about 48.1135909312.

The spelling of 111379 in words is "one hundred eleven thousand, three hundred seventy-nine".

Divisors: 1 127 877 111379