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31042443299 = 724713479133
BaseRepresentation
bin11100111010010001…
…100001100000100011
32222010101211111202012
4130322101201200203
51002033331141144
622132151143135
72146155262100
oct347221414043
988111744665
1031042443299
111218a71711a
126024074aab
132c09342c5a
141706a83aa7
15c1a3e0e9e
hex73a461823

31042443299 has 12 divisors (see below), whose sum is σ = 36878910624. Its totient is φ = 26041683024.

The previous prime is 31042443259. The next prime is 31042443301. The reversal of 31042443299 is 99234424013.

It is a de Polignac number, because none of the positive numbers 2k-31042443299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31042443259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6737264 + ... + 6741869.

It is an arithmetic number, because the mean of its divisors is an integer number (3073242552).

Almost surely, 231042443299 is an apocalyptic number.

31042443299 is a deficient number, since it is larger than the sum of its proper divisors (5836467325).

31042443299 is a wasteful number, since it uses less digits than its factorization.

31042443299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13479194 (or 13479187 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 31042443299 in words is "thirty-one billion, forty-two million, four hundred forty-three thousand, two hundred ninety-nine".

Divisors: 1 7 47 49 329 2303 13479133 94353931 633519251 660477517 4434634757 31042443299