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2011728854 = 21952940233
BaseRepresentation
bin111011111101000…
…1000101111010110
312012012102102012002
41313322020233112
513110000310404
6531342155302
7100565261462
oct16772105726
95165372162
102011728854
11942628733
12481882b32
13260a22b05
1415126d4a2
15bb92cc1e
hex77e88bd6

2011728854 has 8 divisors (see below), whose sum is σ = 3176414040. Its totient is φ = 952924176.

The previous prime is 2011728799. The next prime is 2011728863. The reversal of 2011728854 is 4588271102.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 52940233 = 2011728854 / (2 + 0 + 1 + 1 + 7 + 2 + 8 + 8 + 5 + 4).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26470079 + ... + 26470154.

It is an arithmetic number, because the mean of its divisors is an integer number (397051755).

Almost surely, 22011728854 is an apocalyptic number.

2011728854 is a deficient number, since it is larger than the sum of its proper divisors (1164685186).

2011728854 is a wasteful number, since it uses less digits than its factorization.

2011728854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52940254.

The product of its (nonzero) digits is 35840, while the sum is 38.

The square root of 2011728854 is about 44852.3004315275. The cubic root of 2011728854 is about 1262.3791560183.

Adding to 2011728854 its reverse (4588271102), we get a palindrome (6599999956).

The spelling of 2011728854 in words is "two billion, eleven million, seven hundred twenty-eight thousand, eight hundred fifty-four".

Divisors: 1 2 19 38 52940233 105880466 1005864427 2011728854