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31324341142 = 287831783237
BaseRepresentation
bin11101001011000100…
…111000001110010110
32222212001021101220001
4131023010320032112
51003123012404032
622220141201514
72156150335513
oct351304701626
988761241801
1031324341142
1112314857146
1260a256029a
132c52873403
1417322a430a
15c350263e7
hex74b138396

31324341142 has 8 divisors (see below), whose sum is σ = 46991887776. Its totient is φ = 15660378552.

The previous prime is 31324341133. The next prime is 31324341173. The reversal of 31324341142 is 24114342313.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 31324341142.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 874053 + ... + 909184.

It is an arithmetic number, because the mean of its divisors is an integer number (5873985972).

Almost surely, 231324341142 is an apocalyptic number.

31324341142 is a deficient number, since it is larger than the sum of its proper divisors (15667546634).

31324341142 is a wasteful number, since it uses less digits than its factorization.

31324341142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792022.

The product of its digits is 6912, while the sum is 28.

Adding to 31324341142 its reverse (24114342313), we get a palindrome (55438683455).

The spelling of 31324341142 in words is "thirty-one billion, three hundred twenty-four million, three hundred forty-one thousand, one hundred forty-two".

Divisors: 1 2 8783 17566 1783237 3566474 15662170571 31324341142