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11420747 = 13899871
BaseRepresentation
bin101011100100…
…010001001011
3210111020022122
4223210101023
510410430442
61044441455
7166034432
oct53442113
923436278
1011420747
1164a0638
1239a928b
13249b450
141734119
151008dd2
hexae444b

11420747 has 8 divisors (see below), whose sum is σ = 12438720. Its totient is φ = 10422720.

The previous prime is 11420713. The next prime is 11420789. The reversal of 11420747 is 74702411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11420747 - 28 = 11420491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11420347) 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 7 ways as a sum of consecutive naturals, for example, 3779 + ... + 6092.

It is an arithmetic number, because the mean of its divisors is an integer number (1554840).

Almost surely, 211420747 is an apocalyptic number.

11420747 is a deficient number, since it is larger than the sum of its proper divisors (1017973).

11420747 is an equidigital number, since it uses as much as digits as its factorization.

11420747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9973.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 11420747 is about 3379.4595721801. The cubic root of 11420747 is about 225.1981595842.

It can be divided in two parts, 11420 and 747, that added together give a cube (12167 = 233).

The spelling of 11420747 in words is "eleven million, four hundred twenty thousand, seven hundred forty-seven".

Divisors: 1 13 89 1157 9871 128323 878519 11420747