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919413431 = 17232351441
BaseRepresentation
bin110110110011010…
…010001010110111
32101002001001010022
4312303102022313
53340332212211
6231122115355
731532612426
oct6663221267
92332031108
10919413431
11431a91a12
12217aabb5b
13118632b21
148a1712bd
1555ab3bdb
hex36cd22b7

919413431 has 8 divisors (see below), whose sum is σ = 1015822944. Its totient is φ = 827706880.

The previous prime is 919413427. The next prime is 919413449. The reversal of 919413431 is 134314919.

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

It is not a de Polignac number, because 919413431 - 22 = 919413427 is a prime.

It is a super-2 number, since 2×9194134312 = 1690642114206383522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 919413391 and 919413400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (919413931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175330 + ... + 1176111.

It is an arithmetic number, because the mean of its divisors is an integer number (126977868).

Almost surely, 2919413431 is an apocalyptic number.

919413431 is a deficient number, since it is larger than the sum of its proper divisors (96409513).

919413431 is a wasteful number, since it uses less digits than its factorization.

919413431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351481.

The product of its digits is 11664, while the sum is 35.

The square root of 919413431 is about 30321.8309308656. The cubic root of 919413431 is about 972.3820828342.

The spelling of 919413431 in words is "nine hundred nineteen million, four hundred thirteen thousand, four hundred thirty-one".

Divisors: 1 17 23 391 2351441 39974497 54083143 919413431