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11939137 = 71705591
BaseRepresentation
bin101101100010…
…110101000001
3211110120102021
4231202311001
511024023022
61103521441
7203323660
oct55426501
924416367
1011939137
116815061
123bb9281
1326203a2
14182add7
1510ac7c7
hexb62d41

11939137 has 4 divisors (see below), whose sum is σ = 13644736. Its totient is φ = 10233540.

The previous prime is 11939113. The next prime is 11939177. The reversal of 11939137 is 73193911.

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, and also an emirpimes, since its reverse is a distinct semiprime: 73193911 = 710456273.

It is a cyclic number.

It is not a de Polignac number, because 11939137 - 27 = 11939009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11939107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852789 + ... + 852802.

It is an arithmetic number, because the mean of its divisors is an integer number (3411184).

Almost surely, 211939137 is an apocalyptic number.

It is an amenable number.

11939137 is a deficient number, since it is larger than the sum of its proper divisors (1705599).

11939137 is an equidigital number, since it uses as much as digits as its factorization.

11939137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705598.

The product of its digits is 5103, while the sum is 34.

The square root of 11939137 is about 3455.3056304761. The cubic root of 11939137 is about 228.5551325994. Note that the first 3 decimals are identical.

The spelling of 11939137 in words is "eleven million, nine hundred thirty-nine thousand, one hundred thirty-seven".

Divisors: 1 7 1705591 11939137