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31031104202 = 2711711892833
BaseRepresentation
bin11100111001100110…
…010001001011001010
32222002121111102102122
4130321212101023022
51002022430313302
622131104131242
72145660014360
oct347146211312
988077442378
1031031104202
111218428196a
126020306b22
132c06ba2a27
141705371630
15c194013a2
hex7399912ca

31031104202 has 16 divisors (see below), whose sum is σ = 53241634752. Its totient is φ = 13287680640.

The previous prime is 31031104201. The next prime is 31031104211. The reversal of 31031104202 is 20240113013.

It is not an unprimeable number, because it can be changed into a prime (31031104201) by changing a digit.

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, 930023 + ... + 962810.

It is an arithmetic number, because the mean of its divisors is an integer number (3327602172).

Almost surely, 231031104202 is an apocalyptic number.

31031104202 is a deficient number, since it is larger than the sum of its proper divisors (22210530550).

31031104202 is a wasteful number, since it uses less digits than its factorization.

31031104202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894013.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31031104202 its reverse (20240113013), we get a palindrome (51271217215).

The spelling of 31031104202 in words is "thirty-one billion, thirty-one million, one hundred four thousand, two hundred two".

Divisors: 1 2 7 14 1171 2342 8197 16394 1892833 3785666 13249831 26499662 2216507443 4433014886 15515552101 31031104202