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1342931191 = 7219231279
BaseRepresentation
bin101000000001011…
…1000000011110111
310110120221222021021
41100002320003313
510222242244231
6341131402011
745164504200
oct12002700367
93416858237
101342931191
1162a060098
123158b3307
131852b9a54
14ca4d85a7
157cd70811
hex500b80f7

1342931191 has 54 divisors (see below), whose sum is σ = 1725198480. Its totient is φ = 1041964560.

The previous prime is 1342931143. The next prime is 1342931197. The reversal of 1342931191 is 1911392431.

It is not a de Polignac number, because 1342931191 - 229 = 806060279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342931197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 16999090 + ... + 16999168.

It is an arithmetic number, because the mean of its divisors is an integer number (31948120).

Almost surely, 21342931191 is an apocalyptic number.

1342931191 is a deficient number, since it is larger than the sum of its proper divisors (382267289).

1342931191 is an equidigital number, since it uses as much as digits as its factorization.

1342931191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 136 counting only the distinct ones).

The product of its digits is 5832, while the sum is 34.

The square root of 1342931191 is about 36646.0255825922. The cubic root of 1342931191 is about 1103.2770569613.

The spelling of 1342931191 in words is "one billion, three hundred forty-two million, nine hundred thirty-one thousand, one hundred ninety-one".

Divisors: 1 7 19 31 49 79 133 217 361 553 589 931 961 1501 1519 2449 2527 3871 4123 6727 10507 11191 17143 17689 18259 28519 28861 46531 47089 73549 75919 78337 120001 127813 199633 325717 346921 531433 548359 884089 894691 1397431 1442461 2280019 2428447 3720031 6188623 10097227 16999129 27406759 43320361 70680589 191847313 1342931191