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2312931047 = 719295211151
BaseRepresentation
bin1000100111011100…
…1000011011100111
312222012012001220212
42021313020123213
514214102243142
61021302050035
7111213406130
oct21167103347
95865161825
102312931047
11a87653369
1254671991b
132ab251b6b
1417d276c87
15d80c7d82
hex89dc86e7

2312931047 has 32 divisors (see below), whose sum is σ = 2886451200. Its totient is φ = 1808352000.

The previous prime is 2312931041. The next prime is 2312931097. The reversal of 2312931047 is 7401392132.

It is not a de Polignac number, because 2312931047 - 212 = 2312926951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312931041) 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 31 ways as a sum of consecutive naturals, for example, 2008922 + ... + 2010072.

It is an arithmetic number, because the mean of its divisors is an integer number (90201600).

Almost surely, 22312931047 is an apocalyptic number.

2312931047 is a deficient number, since it is larger than the sum of its proper divisors (573520153).

2312931047 is a wasteful number, since it uses less digits than its factorization.

2312931047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 2312931047 is about 48092.9417586406. The cubic root of 2312931047 is about 1322.4752771895.

The spelling of 2312931047 in words is "two billion, three hundred twelve million, nine hundred thirty-one thousand, forty-seven".

Divisors: 1 7 19 29 133 203 521 551 1151 3647 3857 8057 9899 15109 21869 33379 69293 105763 153083 233653 287071 599671 634201 2009497 4197697 4439407 11393749 17390459 79756243 121733213 330418721 2312931047