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31324642426 = 27119710320359
BaseRepresentation
bin11101001011000110…
…000001110001111010
32222212001211201011201
4131023012001301322
51003123102024201
622220151444414
72156153032060
oct351306016172
988761751151
1031324642426
1112314a42540
1260a268670a
132c5294a59c
141732342030
15c35085801
hex74b181c7a

31324642426 has 64 divisors (see below), whose sum is σ = 59762626560. Its totient is φ = 11960732160.

The previous prime is 31324642399. The next prime is 31324642457. The reversal of 31324642426 is 62424642313.

It is an unprimeable number.

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, 1528435 + ... + 1548793.

It is an arithmetic number, because the mean of its divisors is an integer number (933791040).

Almost surely, 231324642426 is an apocalyptic number.

31324642426 is a deficient number, since it is larger than the sum of its proper divisors (28437984134).

31324642426 is a wasteful number, since it uses less digits than its factorization.

31324642426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20579.

The product of its digits is 165888, while the sum is 37.

The spelling of 31324642426 in words is "thirty-one billion, three hundred twenty-four million, six hundred forty-two thousand, four hundred twenty-six".

Divisors: 1 2 7 11 14 22 77 97 103 154 194 206 679 721 1067 1133 1358 1442 2134 2266 7469 7931 9991 14938 15862 19982 20359 40718 69937 109901 139874 142513 219802 223949 285026 447898 769307 1538614 1567643 1974823 2096977 3135286 3949646 4193954 13823761 14678839 21723053 23066747 27647522 29357678 43446106 46133494 152061371 161467229 203406769 304122742 322934458 406813538 1423847383 2237474459 2847694766 4474948918 15662321213 31324642426