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31146541023 = 3132812842097
BaseRepresentation
bin11101000000011110…
…100111111111011111
32222101122201012222110
4131000132213333133
51002242003303043
622150350245103
72151561142023
oct350036477737
988348635873
1031146541023
11122334572a4
126052ab6793
132c24a8c940
141716820383
15c24604b33
hex7407a7fdf

31146541023 has 16 divisors (see below), whose sum is σ = 44882411616. Its totient is φ = 19098885120.

The previous prime is 31146541021. The next prime is 31146541033. The reversal of 31146541023 is 32014564113.

It is not a de Polignac number, because 31146541023 - 21 = 31146541021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31146541021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1410090 + ... + 1432007.

It is an arithmetic number, because the mean of its divisors is an integer number (2805150726).

Almost surely, 231146541023 is an apocalyptic number.

31146541023 is a deficient number, since it is larger than the sum of its proper divisors (13735870593).

31146541023 is a wasteful number, since it uses less digits than its factorization.

31146541023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2842394.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 31146541023 in words is "thirty-one billion, one hundred forty-six million, five hundred forty-one thousand, twenty-three".

Divisors: 1 3 13 39 281 843 3653 10959 2842097 8526291 36947261 110841783 798629257 2395887771 10382180341 31146541023