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31210420034 = 2192343135053
BaseRepresentation
bin11101000100010010…
…010011011101000010
32222120002220121111202
4131010102103131002
51002404331420114
622200551341202
72153265123143
oct350422233502
988502817452
1031210420034
1112266517572
126070381802
132c35097381
1417210cbaca
15c2a021cde
hex744493742

31210420034 has 16 divisors (see below), whose sum is σ = 49283119680. Its totient is φ = 14782830480.

The previous prime is 31210420019. The next prime is 31210420057. The reversal of 31210420034 is 43002401213.

It is a super-2 number, since 2×312104200342 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31210419988 and 31210420015.

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, 872852 + ... + 907904.

It is an arithmetic number, because the mean of its divisors is an integer number (3080194980).

Almost surely, 231210420034 is an apocalyptic number.

31210420034 is a deficient number, since it is larger than the sum of its proper divisors (18072699646).

31210420034 is a wasteful number, since it uses less digits than its factorization.

31210420034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58505.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31210420034 its reverse (43002401213), we get a palindrome (74212821247).

The spelling of 31210420034 in words is "thirty-one billion, two hundred ten million, four hundred twenty thousand, thirty-four".

Divisors: 1 2 19 38 23431 35053 46862 70106 445189 666007 890378 1332014 821326843 1642653686 15605210017 31210420034