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1408778041 = 11128070731
BaseRepresentation
bin101001111111000…
…0011111100111001
310122011212100011111
41103332003330321
510341121344131
6351443000321
746624262416
oct12376037471
93564770144
101408778041
11663244880
123339690a1
13195b33098
14d515910d
1583a2aab1
hex53f83f39

1408778041 has 4 divisors (see below), whose sum is σ = 1536848784. Its totient is φ = 1280707300.

The previous prime is 1408778029. The next prime is 1408778069.

1408778041 is nontrivially palindromic in base 10.

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.

It is a cyclic number.

It is not a de Polignac number, because 1408778041 - 211 = 1408775993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1408777985 and 1408778003.

It is not an unprimeable number, because it can be changed into a prime (1408778641) by changing a digit.

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, 64035355 + ... + 64035376.

It is an arithmetic number, because the mean of its divisors is an integer number (384212196).

Almost surely, 21408778041 is an apocalyptic number.

1408778041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1408778041 is a deficient number, since it is larger than the sum of its proper divisors (128070743).

1408778041 is a wasteful number, since it uses less digits than its factorization.

1408778041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128070742.

The product of its (nonzero) digits is 50176, while the sum is 40.

The square root of 1408778041 is about 37533.6920779185. The cubic root of 1408778041 is about 1121.0221432509.

The spelling of 1408778041 in words is "one billion, four hundred eight million, seven hundred seventy-eight thousand, forty-one".

Divisors: 1 11 128070731 1408778041