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31302010222 = 2711831188983
BaseRepresentation
bin11101001001101111…
…101100010101101110
32222210111020212121221
4131021233230111232
51003101303311342
622214022413554
72155456461010
oct351157542556
988714225557
1031302010222
111230319463a
126096b912ba
132c4b055052
14172d3301b0
15c330b4a67
hex749bec56e

31302010222 has 16 divisors (see below), whose sum is σ = 53665408512. Its totient is φ = 13413942360.

The previous prime is 31302010213. The next prime is 31302010297. The reversal of 31302010222 is 22201020313.

It is a junction number, because it is equal to n+sod(n) for n = 31302010196 and 31302010205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71143 + ... + 260125.

It is an arithmetic number, because the mean of its divisors is an integer number (3354088032).

Almost surely, 231302010222 is an apocalyptic number.

31302010222 is a deficient number, since it is larger than the sum of its proper divisors (22363398290).

31302010222 is a wasteful number, since it uses less digits than its factorization.

31302010222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200823.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31302010222 its reverse (22201020313), we get a palindrome (53503030535).

The spelling of 31302010222 in words is "thirty-one billion, three hundred two million, ten thousand, two hundred twenty-two".

Divisors: 1 2 7 14 11831 23662 82817 165634 188983 377966 1322881 2645762 2235857873 4471715746 15651005111 31302010222