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111214001 = 539920599
BaseRepresentation
bin1101010000011…
…11110110110001
321202021020221002
412220033312301
5211432322001
615011411345
72520206033
oct650176661
9252236832
10111214001
11578607a8
12312b3b55
131a06bb02
1410aadc53
159b6c46b
hex6a0fdb1

111214001 has 4 divisors (see below), whose sum is σ = 111240000. Its totient is φ = 111188004.

The previous prime is 111213961. The next prime is 111214003. The reversal of 111214001 is 100412111.

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: 100412111 = 883113717.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-111214001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111214003) 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, 4901 + ... + 15698.

It is an arithmetic number, because the mean of its divisors is an integer number (27810000).

Almost surely, 2111214001 is an apocalyptic number.

It is an amenable number.

111214001 is a deficient number, since it is larger than the sum of its proper divisors (25999).

111214001 is an equidigital number, since it uses as much as digits as its factorization.

111214001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25998.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 111214001 is about 10545.8049005280. The cubic root of 111214001 is about 480.8982038863.

Adding to 111214001 its reverse (100412111), we get a palindrome (211626112).

The spelling of 111214001 in words is "one hundred eleven million, two hundred fourteen thousand, one".

Divisors: 1 5399 20599 111214001