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31043004041 = 7149233127739
BaseRepresentation
bin11100111010010011…
…101010011010001001
32222010102212222221102
4130322103222122021
51002034002112131
622132211151145
72146163115650
oct347223523211
988112788842
1031043004041
111218aa6a445
1260242a54b5
132c094ab25a
141706b8c197
15c1a4a21cb
hex73a4ea689

31043004041 has 16 divisors (see below), whose sum is σ = 35869392000. Its totient is φ = 26316071808.

The previous prime is 31043004017. The next prime is 31043004059. The reversal of 31043004041 is 14040034013.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31043004041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31043004011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179150 + ... + 306888.

It is an arithmetic number, because the mean of its divisors is an integer number (2241837000).

Almost surely, 231043004041 is an apocalyptic number.

It is an amenable number.

31043004041 is a deficient number, since it is larger than the sum of its proper divisors (4826387959).

31043004041 is a wasteful number, since it uses less digits than its factorization.

31043004041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128128.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31043004041 its reverse (14040034013), we get a palindrome (45083038054).

The spelling of 31043004041 in words is "thirty-one billion, forty-three million, four thousand, forty-one".

Divisors: 1 7 149 233 1043 1631 34717 127739 243019 894173 19033111 29763187 133231777 208342309 4434714863 31043004041