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31408817103 = 3219526134913
BaseRepresentation
bin11101010000000111…
…001000001111001111
310000001221020020010100
4131100013020033033
51003311124121403
622232355542143
72161224353226
oct352007101717
9100057206110
1031408817103
1112358505194
1261068ba953
132c6720cba1
14173d5b3cbd
15c3c6612a3
hex7501c83cf

31408817103 has 24 divisors (see below), whose sum is σ = 47766541680. Its totient is φ = 19832808960.

The previous prime is 31408817093. The next prime is 31408817149. The reversal of 31408817103 is 30171880413.

It is not a de Polignac number, because 31408817103 - 210 = 31408816079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31408817173) 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 23 ways as a sum of consecutive naturals, for example, 882175 + ... + 917087.

It is an arithmetic number, because the mean of its divisors is an integer number (1990272570).

Almost surely, 231408817103 is an apocalyptic number.

31408817103 is a deficient number, since it is larger than the sum of its proper divisors (16357724577).

31408817103 is a wasteful number, since it uses less digits than its factorization.

31408817103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40199 (or 40196 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 31408817103 in words is "thirty-one billion, four hundred eight million, eight hundred seventeen thousand, one hundred three".

Divisors: 1 3 9 19 57 171 5261 15783 34913 47349 99959 104739 299877 314217 663347 899631 1990041 5970123 183677293 551031879 1653095637 3489868567 10469605701 31408817103