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31234032222 = 2321937237301
BaseRepresentation
bin11101000101101100…
…011000001001011110
32222121202100020100020
4131011230120021132
51002431403012342
622203153413010
72154002615301
oct350554301136
988552306306
1031234032222
1112278884778
12607826a166
132c39c43993
1417242b6b38
15c2c1380ec
hex745b1825e

31234032222 has 16 divisors (see below), whose sum is σ = 62471175312. Its totient is φ = 10410825600.

The previous prime is 31234032217. The next prime is 31234032233. The reversal of 31234032222 is 22223043213.

It is a junction number, because it is equal to n+sod(n) for n = 31234032192 and 31234032201.

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 7 ways as a sum of consecutive naturals, for example, 12972 + ... + 250272.

It is an arithmetic number, because the mean of its divisors is an integer number (3904448457).

Almost surely, 231234032222 is an apocalyptic number.

31234032222 is an abundant number, since it is smaller than the sum of its proper divisors (31237143090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31234032222 is a wasteful number, since it uses less digits than its factorization.

31234032222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259243.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 31234032222 its reverse (22223043213), we get a palindrome (53457075435).

The spelling of 31234032222 in words is "thirty-one billion, two hundred thirty-four million, thirty-two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 21937 43874 65811 131622 237301 474602 711903 1423806 5205672037 10411344074 15617016111 31234032222